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Posted to commits@hawq.apache.org by yo...@apache.org on 2017/02/01 17:35:25 UTC
[1/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Repository: incubator-hawq-docs
Updated Branches:
refs/heads/develop 18e72d6a2 -> a42c05a95
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-SCHEMA.html.md.erb
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diff --git a/markdown/reference/sql/DROP-SCHEMA.html.md.erb b/markdown/reference/sql/DROP-SCHEMA.html.md.erb
index 8d7846f..993bddd 100644
--- a/markdown/reference/sql/DROP-SCHEMA.html.md.erb
+++ b/markdown/reference/sql/DROP-SCHEMA.html.md.erb
@@ -2,6 +2,25 @@
title: DROP SCHEMA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a schema.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-SEQUENCE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-SEQUENCE.html.md.erb b/markdown/reference/sql/DROP-SEQUENCE.html.md.erb
index 59c0d85..4d787ae 100644
--- a/markdown/reference/sql/DROP-SEQUENCE.html.md.erb
+++ b/markdown/reference/sql/DROP-SEQUENCE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP SEQUENCE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a sequence.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-TABLE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-TABLE.html.md.erb b/markdown/reference/sql/DROP-TABLE.html.md.erb
index b277273..02a57c0 100644
--- a/markdown/reference/sql/DROP-TABLE.html.md.erb
+++ b/markdown/reference/sql/DROP-TABLE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP TABLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a table.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-TABLESPACE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-TABLESPACE.html.md.erb b/markdown/reference/sql/DROP-TABLESPACE.html.md.erb
index 9ffdfef..2112ea9 100644
--- a/markdown/reference/sql/DROP-TABLESPACE.html.md.erb
+++ b/markdown/reference/sql/DROP-TABLESPACE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP TABLESPACE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a tablespace.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-TYPE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-TYPE.html.md.erb b/markdown/reference/sql/DROP-TYPE.html.md.erb
index 1ffd44a..f6e3476 100644
--- a/markdown/reference/sql/DROP-TYPE.html.md.erb
+++ b/markdown/reference/sql/DROP-TYPE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP TYPE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a data type.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-USER.html.md.erb
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diff --git a/markdown/reference/sql/DROP-USER.html.md.erb b/markdown/reference/sql/DROP-USER.html.md.erb
index 6ab3992..268ec18 100644
--- a/markdown/reference/sql/DROP-USER.html.md.erb
+++ b/markdown/reference/sql/DROP-USER.html.md.erb
@@ -2,6 +2,25 @@
title: DROP USER
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-VIEW.html.md.erb
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diff --git a/markdown/reference/sql/DROP-VIEW.html.md.erb b/markdown/reference/sql/DROP-VIEW.html.md.erb
index b8b9968..83562d3 100644
--- a/markdown/reference/sql/DROP-VIEW.html.md.erb
+++ b/markdown/reference/sql/DROP-VIEW.html.md.erb
@@ -2,6 +2,25 @@
title: DROP VIEW
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a view.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/END.html.md.erb
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diff --git a/markdown/reference/sql/END.html.md.erb b/markdown/reference/sql/END.html.md.erb
index 484afcf..41c7466 100644
--- a/markdown/reference/sql/END.html.md.erb
+++ b/markdown/reference/sql/END.html.md.erb
@@ -2,6 +2,25 @@
title: END
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Commits the current transaction.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/EXECUTE.html.md.erb
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diff --git a/markdown/reference/sql/EXECUTE.html.md.erb b/markdown/reference/sql/EXECUTE.html.md.erb
index ff57cc6..94972a6 100644
--- a/markdown/reference/sql/EXECUTE.html.md.erb
+++ b/markdown/reference/sql/EXECUTE.html.md.erb
@@ -2,6 +2,25 @@
title: EXECUTE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Executes a prepared SQL statement.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/EXPLAIN.html.md.erb
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diff --git a/markdown/reference/sql/EXPLAIN.html.md.erb b/markdown/reference/sql/EXPLAIN.html.md.erb
index ca0e908..562fd39 100644
--- a/markdown/reference/sql/EXPLAIN.html.md.erb
+++ b/markdown/reference/sql/EXPLAIN.html.md.erb
@@ -2,6 +2,25 @@
title: EXPLAIN
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Shows the query plan of a statement.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/FETCH.html.md.erb
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diff --git a/markdown/reference/sql/FETCH.html.md.erb b/markdown/reference/sql/FETCH.html.md.erb
index bdd9292..eeffc44 100644
--- a/markdown/reference/sql/FETCH.html.md.erb
+++ b/markdown/reference/sql/FETCH.html.md.erb
@@ -2,6 +2,25 @@
title: FETCH
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Retrieves rows from a query using a cursor.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/GRANT.html.md.erb
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diff --git a/markdown/reference/sql/GRANT.html.md.erb b/markdown/reference/sql/GRANT.html.md.erb
index 1673df5..f87c274 100644
--- a/markdown/reference/sql/GRANT.html.md.erb
+++ b/markdown/reference/sql/GRANT.html.md.erb
@@ -2,6 +2,25 @@
title: GRANT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines access privileges.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/INSERT.html.md.erb
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diff --git a/markdown/reference/sql/INSERT.html.md.erb b/markdown/reference/sql/INSERT.html.md.erb
index d23a2aa..ca533a4 100644
--- a/markdown/reference/sql/INSERT.html.md.erb
+++ b/markdown/reference/sql/INSERT.html.md.erb
@@ -2,6 +2,25 @@
title: INSERT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Creates new rows in a table.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/PREPARE.html.md.erb
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diff --git a/markdown/reference/sql/PREPARE.html.md.erb b/markdown/reference/sql/PREPARE.html.md.erb
index c633f14..338bb02 100644
--- a/markdown/reference/sql/PREPARE.html.md.erb
+++ b/markdown/reference/sql/PREPARE.html.md.erb
@@ -2,6 +2,25 @@
title: PREPARE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Prepare a statement for execution.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/REASSIGN-OWNED.html.md.erb
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diff --git a/markdown/reference/sql/REASSIGN-OWNED.html.md.erb b/markdown/reference/sql/REASSIGN-OWNED.html.md.erb
index c037bfe..053526e 100644
--- a/markdown/reference/sql/REASSIGN-OWNED.html.md.erb
+++ b/markdown/reference/sql/REASSIGN-OWNED.html.md.erb
@@ -2,6 +2,25 @@
title: REASSIGN OWNED
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the ownership of database objects owned by a database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/RELEASE-SAVEPOINT.html.md.erb
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diff --git a/markdown/reference/sql/RELEASE-SAVEPOINT.html.md.erb b/markdown/reference/sql/RELEASE-SAVEPOINT.html.md.erb
index ca25d9e..43641b4 100644
--- a/markdown/reference/sql/RELEASE-SAVEPOINT.html.md.erb
+++ b/markdown/reference/sql/RELEASE-SAVEPOINT.html.md.erb
@@ -2,6 +2,25 @@
title: RELEASE SAVEPOINT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Destroys a previously defined savepoint.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/RESET.html.md.erb
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diff --git a/markdown/reference/sql/RESET.html.md.erb b/markdown/reference/sql/RESET.html.md.erb
index cb04d32..25c882d 100644
--- a/markdown/reference/sql/RESET.html.md.erb
+++ b/markdown/reference/sql/RESET.html.md.erb
@@ -2,6 +2,25 @@
title: RESET
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Restores the value of a system configuration parameter to the default value.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/REVOKE.html.md.erb
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diff --git a/markdown/reference/sql/REVOKE.html.md.erb b/markdown/reference/sql/REVOKE.html.md.erb
index cad809a..8afcf00 100644
--- a/markdown/reference/sql/REVOKE.html.md.erb
+++ b/markdown/reference/sql/REVOKE.html.md.erb
@@ -2,6 +2,25 @@
title: REVOKE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes access privileges.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ROLLBACK-TO-SAVEPOINT.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ROLLBACK-TO-SAVEPOINT.html.md.erb b/markdown/reference/sql/ROLLBACK-TO-SAVEPOINT.html.md.erb
index 33c771b..da09a00 100644
--- a/markdown/reference/sql/ROLLBACK-TO-SAVEPOINT.html.md.erb
+++ b/markdown/reference/sql/ROLLBACK-TO-SAVEPOINT.html.md.erb
@@ -2,6 +2,25 @@
title: ROLLBACK TO SAVEPOINT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Rolls back the current transaction to a savepoint.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ROLLBACK.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ROLLBACK.html.md.erb b/markdown/reference/sql/ROLLBACK.html.md.erb
index eb1345d..576e3e3 100644
--- a/markdown/reference/sql/ROLLBACK.html.md.erb
+++ b/markdown/reference/sql/ROLLBACK.html.md.erb
@@ -2,6 +2,25 @@
title: ROLLBACK
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Aborts the current transaction.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SAVEPOINT.html.md.erb
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diff --git a/markdown/reference/sql/SAVEPOINT.html.md.erb b/markdown/reference/sql/SAVEPOINT.html.md.erb
index c2f6917..34e2d0a 100644
--- a/markdown/reference/sql/SAVEPOINT.html.md.erb
+++ b/markdown/reference/sql/SAVEPOINT.html.md.erb
@@ -2,6 +2,25 @@
title: SAVEPOINT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new savepoint within the current transaction.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SELECT-INTO.html.md.erb
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diff --git a/markdown/reference/sql/SELECT-INTO.html.md.erb b/markdown/reference/sql/SELECT-INTO.html.md.erb
index 524a5f1..8461306 100644
--- a/markdown/reference/sql/SELECT-INTO.html.md.erb
+++ b/markdown/reference/sql/SELECT-INTO.html.md.erb
@@ -2,6 +2,25 @@
title: SELECT INTO
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new table from the results of a query.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SELECT.html.md.erb
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diff --git a/markdown/reference/sql/SELECT.html.md.erb b/markdown/reference/sql/SELECT.html.md.erb
index 4649bad..32bb0a8 100644
--- a/markdown/reference/sql/SELECT.html.md.erb
+++ b/markdown/reference/sql/SELECT.html.md.erb
@@ -2,6 +2,25 @@
title: SELECT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Retrieves rows from a table or view.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SET-ROLE.html.md.erb
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diff --git a/markdown/reference/sql/SET-ROLE.html.md.erb b/markdown/reference/sql/SET-ROLE.html.md.erb
index 63a03f6..206568e 100644
--- a/markdown/reference/sql/SET-ROLE.html.md.erb
+++ b/markdown/reference/sql/SET-ROLE.html.md.erb
@@ -2,6 +2,25 @@
title: SET ROLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Sets the current role identifier of the current session.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SET-SESSION-AUTHORIZATION.html.md.erb
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diff --git a/markdown/reference/sql/SET-SESSION-AUTHORIZATION.html.md.erb b/markdown/reference/sql/SET-SESSION-AUTHORIZATION.html.md.erb
index adea314..f94bea6 100644
--- a/markdown/reference/sql/SET-SESSION-AUTHORIZATION.html.md.erb
+++ b/markdown/reference/sql/SET-SESSION-AUTHORIZATION.html.md.erb
@@ -2,6 +2,25 @@
title: SET SESSION AUTHORIZATION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Sets the session role identifier and the current role identifier of the current session.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SET.html.md.erb
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diff --git a/markdown/reference/sql/SET.html.md.erb b/markdown/reference/sql/SET.html.md.erb
index 4f4ad24..206f8ce 100644
--- a/markdown/reference/sql/SET.html.md.erb
+++ b/markdown/reference/sql/SET.html.md.erb
@@ -2,6 +2,25 @@
title: SET
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the value of a HAWQ configuration parameter.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/SHOW.html.md.erb
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diff --git a/markdown/reference/sql/SHOW.html.md.erb b/markdown/reference/sql/SHOW.html.md.erb
index 802761b..b631829 100644
--- a/markdown/reference/sql/SHOW.html.md.erb
+++ b/markdown/reference/sql/SHOW.html.md.erb
@@ -2,6 +2,25 @@
title: SHOW
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Shows the value of a system configuration parameter.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/TRUNCATE.html.md.erb
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diff --git a/markdown/reference/sql/TRUNCATE.html.md.erb b/markdown/reference/sql/TRUNCATE.html.md.erb
index c91ae84..bfd9aea 100644
--- a/markdown/reference/sql/TRUNCATE.html.md.erb
+++ b/markdown/reference/sql/TRUNCATE.html.md.erb
@@ -2,6 +2,25 @@
title: TRUNCATE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Empties a table of all rows.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/VACUUM.html.md.erb
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diff --git a/markdown/reference/sql/VACUUM.html.md.erb b/markdown/reference/sql/VACUUM.html.md.erb
index 57ccc0e..59c5bdb 100644
--- a/markdown/reference/sql/VACUUM.html.md.erb
+++ b/markdown/reference/sql/VACUUM.html.md.erb
@@ -2,6 +2,25 @@
title: VACUUM
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Garbage-collects and optionally analyzes a database.
**Note**: HAWQ `VACUUM` support is provided only for system catalog tables. `VACUUM`ing a HAWQ user table has no effect.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/toolkit/hawq_toolkit.html.md.erb
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diff --git a/markdown/reference/toolkit/hawq_toolkit.html.md.erb b/markdown/reference/toolkit/hawq_toolkit.html.md.erb
index b898061..2796241 100644
--- a/markdown/reference/toolkit/hawq_toolkit.html.md.erb
+++ b/markdown/reference/toolkit/hawq_toolkit.html.md.erb
@@ -2,6 +2,25 @@
title: The hawq_toolkit Administrative Schema
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides a reference on the `hawq_toolkit` administrative schema.
HAWQ provides an administrative schema called `hawq_toolkit` that you can use to query the system catalogs, log files, and operating environment for system status information. The `hawq_toolkit` schema contains a number of views that you can access using SQL commands. The `hawq_toolkit` schema is accessible to all database users, although some objects may require superuser permissions.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/requirements/system-requirements.html.md.erb
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diff --git a/markdown/requirements/system-requirements.html.md.erb b/markdown/requirements/system-requirements.html.md.erb
index 7f117dc..5a52f09 100644
--- a/markdown/requirements/system-requirements.html.md.erb
+++ b/markdown/requirements/system-requirements.html.md.erb
@@ -2,6 +2,25 @@
title: Apache HAWQ System Requirements
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Follow these guidelines to configure each host machine that will run an Apache HAWQ or PXF service.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/ConfigureResourceManagement.html.md.erb
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diff --git a/markdown/resourcemgmt/ConfigureResourceManagement.html.md.erb b/markdown/resourcemgmt/ConfigureResourceManagement.html.md.erb
index 1b66068..6e6d0e4 100644
--- a/markdown/resourcemgmt/ConfigureResourceManagement.html.md.erb
+++ b/markdown/resourcemgmt/ConfigureResourceManagement.html.md.erb
@@ -2,6 +2,25 @@
title: Configuring Resource Management
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides configuration information for system administrators and database superusers responsible for managing resources in a HAWQ system.
To configure resource management in HAWQ, follow these high-level steps:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/HAWQResourceManagement.html.md.erb
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diff --git a/markdown/resourcemgmt/HAWQResourceManagement.html.md.erb b/markdown/resourcemgmt/HAWQResourceManagement.html.md.erb
index cfa9942..f5412df 100644
--- a/markdown/resourcemgmt/HAWQResourceManagement.html.md.erb
+++ b/markdown/resourcemgmt/HAWQResourceManagement.html.md.erb
@@ -2,6 +2,25 @@
title: How HAWQ Manages Resources
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ manages resources (CPU, memory, I/O and file handles) using a variety of mechanisms including global resource management, resource queues and the enforcement of limits on resource usage.
## <a id="global-env"></a>Globally Managed Environments
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/ResourceQueues.html.md.erb
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diff --git a/markdown/resourcemgmt/ResourceQueues.html.md.erb b/markdown/resourcemgmt/ResourceQueues.html.md.erb
index cd019c6..833cac8 100644
--- a/markdown/resourcemgmt/ResourceQueues.html.md.erb
+++ b/markdown/resourcemgmt/ResourceQueues.html.md.erb
@@ -2,6 +2,25 @@
title: Working with Hierarchical Resource Queues
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section describes how administrators can define and work with resource queues in order to allocate resource usage within HAWQ. By designing hierarchical resource queues, system administrators can balance system resources to queries as needed.
## <a id="resource_queues"></a>HAWQ Resource Queues
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/YARNIntegration.html.md.erb
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diff --git a/markdown/resourcemgmt/YARNIntegration.html.md.erb b/markdown/resourcemgmt/YARNIntegration.html.md.erb
index 6898f6c..be504a0 100644
--- a/markdown/resourcemgmt/YARNIntegration.html.md.erb
+++ b/markdown/resourcemgmt/YARNIntegration.html.md.erb
@@ -2,6 +2,25 @@
title: Integrating YARN with HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ supports integration with YARN for global resource management. In a YARN managed environment, HAWQ can request resources \(containers\) dynamically from YARN, and return resources when HAWQ's workload is not heavy. This feature makes HAWQ a native citizen of the whole Hadoop eco-system.
To integrate YARN with HAWQ, use the following high-level steps.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/best-practices.html.md.erb
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diff --git a/markdown/resourcemgmt/best-practices.html.md.erb b/markdown/resourcemgmt/best-practices.html.md.erb
index 74bd815..493838a 100644
--- a/markdown/resourcemgmt/best-practices.html.md.erb
+++ b/markdown/resourcemgmt/best-practices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Configuring Resource Management
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
When configuring resource management, you can apply certain best practices to ensure that resources are managed both efficiently and for best system performance.
The following is a list of high-level best practices for optimal resource management:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/resourcemgmt/index.md.erb
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diff --git a/markdown/resourcemgmt/index.md.erb b/markdown/resourcemgmt/index.md.erb
index 7efb756..424163e 100644
--- a/markdown/resourcemgmt/index.md.erb
+++ b/markdown/resourcemgmt/index.md.erb
@@ -2,6 +2,25 @@
title: Managing Resources
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section describes how to use HAWQ's resource management features:
* <a class="subnav" href="./HAWQResourceManagement.html">How HAWQ Manages Resources</a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/troubleshooting/Troubleshooting.html.md.erb
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diff --git a/markdown/troubleshooting/Troubleshooting.html.md.erb b/markdown/troubleshooting/Troubleshooting.html.md.erb
index 2b7414b..994fdfb 100644
--- a/markdown/troubleshooting/Troubleshooting.html.md.erb
+++ b/markdown/troubleshooting/Troubleshooting.html.md.erb
@@ -2,6 +2,25 @@
title: Troubleshooting
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This chapter describes how to resolve common problems and errors that occur in a HAWQ system.
[6/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/dml.html.md.erb
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diff --git a/markdown/datamgmt/dml.html.md.erb b/markdown/datamgmt/dml.html.md.erb
index 681883a..3c5d7fa 100644
--- a/markdown/datamgmt/dml.html.md.erb
+++ b/markdown/datamgmt/dml.html.md.erb
@@ -2,6 +2,25 @@
title: Managing Data with HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This chapter provides information about manipulating data and concurrent access in HAWQ.
- **[Basic Data Operations](../datamgmt/BasicDataOperations.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/client-loadtools.html.md.erb
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diff --git a/markdown/datamgmt/load/client-loadtools.html.md.erb b/markdown/datamgmt/load/client-loadtools.html.md.erb
index fe291d0..6587a9f 100644
--- a/markdown/datamgmt/load/client-loadtools.html.md.erb
+++ b/markdown/datamgmt/load/client-loadtools.html.md.erb
@@ -1,6 +1,25 @@
---
title: Client-Based HAWQ Load Tools
---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
HAWQ supports data loading from Red Hat Enterprise Linux 5, 6, and 7 and Windows XP client systems. HAWQ Load Tools include both a loader program and a parallel file distribution program.
This topic presents the instructions to install the HAWQ Load Tools on your client machine. It also includes the information necessary to configure HAWQ databases to accept remote client connections.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/creating-external-tables-examples.html.md.erb
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diff --git a/markdown/datamgmt/load/creating-external-tables-examples.html.md.erb b/markdown/datamgmt/load/creating-external-tables-examples.html.md.erb
index 7d38971..4001968 100644
--- a/markdown/datamgmt/load/creating-external-tables-examples.html.md.erb
+++ b/markdown/datamgmt/load/creating-external-tables-examples.html.md.erb
@@ -2,6 +2,25 @@
title: Creating External Tables - Examples
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The following examples show how to define external data with different protocols. Each `CREATE EXTERNAL TABLE` command can contain only one protocol.
**Note:** When using IPv6, always enclose the numeric IP addresses in square brackets.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-about-gpfdist-setup-and-performance.html.md.erb
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diff --git a/markdown/datamgmt/load/g-about-gpfdist-setup-and-performance.html.md.erb b/markdown/datamgmt/load/g-about-gpfdist-setup-and-performance.html.md.erb
index 28a0bfe..9868850 100644
--- a/markdown/datamgmt/load/g-about-gpfdist-setup-and-performance.html.md.erb
+++ b/markdown/datamgmt/load/g-about-gpfdist-setup-and-performance.html.md.erb
@@ -2,6 +2,25 @@
title: About gpfdist Setup and Performance
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Consider the following scenarios for optimizing your ETL network performance.
- Allow network traffic to use all ETL host Network Interface Cards (NICs) simultaneously. Run one instance of `gpfdist` on the ETL host, then declare the host name of each NIC in the `LOCATION` clause of your external table definition (see [Creating External Tables - Examples](creating-external-tables-examples.html#topic44)).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-character-encoding.html.md.erb
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diff --git a/markdown/datamgmt/load/g-character-encoding.html.md.erb b/markdown/datamgmt/load/g-character-encoding.html.md.erb
index 9f3756d..ea52334 100644
--- a/markdown/datamgmt/load/g-character-encoding.html.md.erb
+++ b/markdown/datamgmt/load/g-character-encoding.html.md.erb
@@ -2,6 +2,25 @@
title: Character Encoding
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Character encoding systems consist of a code that pairs each character from a character set with something else, such as a sequence of numbers or octets, to facilitate data stransmission and storage. HAWQ supports a variety of character sets, including single-byte character sets such as the ISO 8859 series and multiple-byte character sets such as EUC (Extended UNIX Code), UTF-8, and Mule internal code. Clients can use all supported character sets transparently, but a few are not supported for use within the server as a server-side encoding.
Data files must be in a character encoding recognized by HAWQ. Data files that contain invalid or unsupported encoding sequences encounter errors when loading into HAWQ.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-command-based-web-external-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-command-based-web-external-tables.html.md.erb b/markdown/datamgmt/load/g-command-based-web-external-tables.html.md.erb
index 7830cc3..4a6a5cb 100644
--- a/markdown/datamgmt/load/g-command-based-web-external-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-command-based-web-external-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Command-based Web External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The output of a shell command or script defines command-based web table data. Specify the command in the `EXECUTE` clause of `CREATE EXTERNAL WEB TABLE`. The data is current as of the time the command runs. The `EXECUTE` clause runs the shell command or script on the specified master or virtual segments. The virtual segments run the command in parallel. Scripts must be executable by the gpadmin user and reside in the same location on the master or the hosts of virtual segments.
The command that you specify in the external table definition executes from the database and cannot access environment variables from `.bashrc` or `.profile`. Set environment variables in the `EXECUTE` clause. The following external web table, for example, runs a command on the HAWQ master host:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-configuration-file-format.html.md.erb
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diff --git a/markdown/datamgmt/load/g-configuration-file-format.html.md.erb b/markdown/datamgmt/load/g-configuration-file-format.html.md.erb
index 73f51a9..f375e5c 100644
--- a/markdown/datamgmt/load/g-configuration-file-format.html.md.erb
+++ b/markdown/datamgmt/load/g-configuration-file-format.html.md.erb
@@ -2,6 +2,25 @@
title: Configuration File Format
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gpfdist` configuration file uses the YAML 1.1 document format and implements a schema for defining the transformation parameters. The configuration file must be a valid YAML document.
The `gpfdist` program processes the document in order and uses indentation (spaces) to determine the document hierarchy and relationships of the sections to one another. The use of white space is significant. Do not use white space for formatting and do not use tabs.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-controlling-segment-parallelism.html.md.erb
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diff --git a/markdown/datamgmt/load/g-controlling-segment-parallelism.html.md.erb b/markdown/datamgmt/load/g-controlling-segment-parallelism.html.md.erb
index 4e0096c..ff89ffb 100644
--- a/markdown/datamgmt/load/g-controlling-segment-parallelism.html.md.erb
+++ b/markdown/datamgmt/load/g-controlling-segment-parallelism.html.md.erb
@@ -2,6 +2,25 @@
title: Controlling Segment Parallelism
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_external_max_segs` server configuration parameter controls the number of virtual segments that can simultaneously access a single `gpfdist` instance. The default is 64. You can set the number of segments such that some segments process external data files and some perform other database processing. Set this parameter in the `hawq-site.xml` file of your master instance.
The number of segments in the `gpfdist` location list specify the minimum number of virtual segments required to serve data to a `gpfdist` external table.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html.md.erb
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diff --git a/markdown/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html.md.erb b/markdown/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html.md.erb
index ade14ea..6f001ea 100644
--- a/markdown/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html.md.erb
+++ b/markdown/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html.md.erb
@@ -2,6 +2,25 @@
title: Capture Row Formatting Errors and Declare a Reject Limit
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The following SQL fragment captures formatting errors internally in HAWQ and declares a reject limit of 10 rows.
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-creating-and-using-web-external-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-creating-and-using-web-external-tables.html.md.erb b/markdown/datamgmt/load/g-creating-and-using-web-external-tables.html.md.erb
index 4ef6cab..bdbe808 100644
--- a/markdown/datamgmt/load/g-creating-and-using-web-external-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-creating-and-using-web-external-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Using Web External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
`CREATE EXTERNAL WEB TABLE` creates a web table definition. Web external tables allow HAWQ to treat dynamic data sources like regular database tables. Because web table data can change as a query runs, the data is not rescannable.
You can define command-based or URL-based web external tables. The definition forms are distinct: you cannot mix command-based and URL-based definitions.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html.md.erb
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diff --git a/markdown/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html.md.erb b/markdown/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html.md.erb
index e0c3c17..54cde2a 100644
--- a/markdown/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html.md.erb
+++ b/markdown/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html.md.erb
@@ -2,6 +2,25 @@
title: Define an External Table with Single Row Error Isolation
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The following example logs errors internally in HAWQ and sets an error threshold of 10 errors.
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html.md.erb
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diff --git a/markdown/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html.md.erb b/markdown/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html.md.erb
index 8a24474..067fbfb 100644
--- a/markdown/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html.md.erb
+++ b/markdown/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html.md.erb
@@ -2,6 +2,25 @@
title: Defining a Command-Based Writable External Web Table
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can define writable external web tables to send output rows to an application or script. The application must accept an input stream, reside in the same location on all of the HAWQ segment hosts, and be executable by the `gpadmin` user. All segments in the HAWQ system run the application or script, whether or not a segment has output rows to process.
Use `CREATE WRITABLE EXTERNAL WEB TABLE` to define the external table and specify the application or script to run on the segment hosts. Commands execute from within the database and cannot access environment variables (such as `$PATH`). Set environment variables in the `EXECUTE` clause of your writable external table definition. For example:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-defining-a-file-based-writable-external-table.html.md.erb
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diff --git a/markdown/datamgmt/load/g-defining-a-file-based-writable-external-table.html.md.erb b/markdown/datamgmt/load/g-defining-a-file-based-writable-external-table.html.md.erb
index fa1ddfa..5a7468b 100644
--- a/markdown/datamgmt/load/g-defining-a-file-based-writable-external-table.html.md.erb
+++ b/markdown/datamgmt/load/g-defining-a-file-based-writable-external-table.html.md.erb
@@ -2,6 +2,25 @@
title: Defining a File-Based Writable External Table
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Writable external tables that output data to files use the HAWQ parallel file server program, `gpfdist`, or HAWQ Extensions Framework (PXF).
Use the `CREATE WRITABLE EXTERNAL TABLE` command to define the external table and specify the location and format of the output files.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-determine-the-transformation-schema.html.md.erb
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diff --git a/markdown/datamgmt/load/g-determine-the-transformation-schema.html.md.erb b/markdown/datamgmt/load/g-determine-the-transformation-schema.html.md.erb
index 1a4eb9b..4376c67 100644
--- a/markdown/datamgmt/load/g-determine-the-transformation-schema.html.md.erb
+++ b/markdown/datamgmt/load/g-determine-the-transformation-schema.html.md.erb
@@ -2,6 +2,25 @@
title: Determine the Transformation Schema
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
To prepare for the transformation project:
1. <span class="ph">Determine the goal of the project, such as indexing data, analyzing data, combining data, and so on.</span>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html.md.erb b/markdown/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html.md.erb
index f0332b5..a462807 100644
--- a/markdown/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Disabling EXECUTE for Web or Writable External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
There is a security risk associated with allowing external tables to execute OS commands or scripts. To disable the use of `EXECUTE` in web and writable external table definitions, set the `gp_external_enable_exec server` configuration parameter to off in your master `hawq-site.xml` file:
``` pre
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-escaping-in-csv-formatted-files.html.md.erb
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diff --git a/markdown/datamgmt/load/g-escaping-in-csv-formatted-files.html.md.erb b/markdown/datamgmt/load/g-escaping-in-csv-formatted-files.html.md.erb
index d07b463..1ac32a2 100644
--- a/markdown/datamgmt/load/g-escaping-in-csv-formatted-files.html.md.erb
+++ b/markdown/datamgmt/load/g-escaping-in-csv-formatted-files.html.md.erb
@@ -2,6 +2,25 @@
title: Escaping in CSV Formatted Files
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
By default, the escape character is a `"` (double quote) for CSV-formatted files. If you want to use a different escape character, use the `ESCAPE` clause of `COPY`, `CREATE EXTERNAL TABLE` or the `hawq load` control file to declare a different escape character. In cases where your selected escape character is present in your data, you can use it to escape itself.
For example, suppose you have a table with three columns and you want to load the following three fields:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-escaping-in-text-formatted-files.html.md.erb
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diff --git a/markdown/datamgmt/load/g-escaping-in-text-formatted-files.html.md.erb b/markdown/datamgmt/load/g-escaping-in-text-formatted-files.html.md.erb
index e24a2b7..110638e 100644
--- a/markdown/datamgmt/load/g-escaping-in-text-formatted-files.html.md.erb
+++ b/markdown/datamgmt/load/g-escaping-in-text-formatted-files.html.md.erb
@@ -2,6 +2,25 @@
title: Escaping in Text Formatted Files
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
By default, the escape character is a \\ (backslash) for text-formatted files. You can declare a different escape character in the `ESCAPE` clause of `COPY`, `CREATE EXTERNAL TABLE`, or the `hawq load` control file. If your escape character appears in your data, use it to escape itself.
For example, suppose you have a table with three columns and you want to load the following three fields:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-escaping.html.md.erb
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diff --git a/markdown/datamgmt/load/g-escaping.html.md.erb b/markdown/datamgmt/load/g-escaping.html.md.erb
index 0a1e62a..d3a5aa7 100644
--- a/markdown/datamgmt/load/g-escaping.html.md.erb
+++ b/markdown/datamgmt/load/g-escaping.html.md.erb
@@ -2,6 +2,25 @@
title: Escaping
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
There are two reserved characters that have special meaning to HAWQ:
- The designated delimiter character separates columns or fields in the data file.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html.md.erb
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diff --git a/markdown/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html.md.erb b/markdown/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html.md.erb
index 4f61396..0c27cd7 100644
--- a/markdown/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html.md.erb
+++ b/markdown/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html.md.erb
@@ -2,6 +2,25 @@
title: Command-based Web External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The output of a shell command or script defines command-based web table data. Specify the command in the `EXECUTE` clause of `CREATE EXTERNAL WEB TABLE`. The data is current as of the time the command runs. The `EXECUTE` clause runs the shell command or script on the specified master, and/or segment host or hosts. The command or script must reside on the hosts corresponding to the host(s) defined in the `EXECUTE` clause.
By default, the command is run on segment hosts when active segments have output rows to process. For example, if each segment host runs four primary segment instances that have output rows to process, the command runs four times per segment host. You can optionally limit the number of segment instances that execute the web table command. All segments included in the web table definition in the `ON` clause run the command in parallel.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-example-hawq-file-server-gpfdist.html.md.erb
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diff --git a/markdown/datamgmt/load/g-example-hawq-file-server-gpfdist.html.md.erb b/markdown/datamgmt/load/g-example-hawq-file-server-gpfdist.html.md.erb
index a0bf669..af57c44 100644
--- a/markdown/datamgmt/load/g-example-hawq-file-server-gpfdist.html.md.erb
+++ b/markdown/datamgmt/load/g-example-hawq-file-server-gpfdist.html.md.erb
@@ -2,6 +2,25 @@
title: Example - HAWQ file server (gpfdist)
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
``` sql
=# CREATE WRITABLE EXTERNAL TABLE unload_expenses
( LIKE expenses )
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html.md.erb
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diff --git a/markdown/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html.md.erb b/markdown/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html.md.erb
index 6f5b9e3..df225b2 100644
--- a/markdown/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html.md.erb
+++ b/markdown/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html.md.erb
@@ -2,6 +2,25 @@
title: Example using IRS MeF XML Files (In demo Directory)
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This example demonstrates loading a sample IRS Modernized eFile tax return using a Joost STX transformation. The data is in the form of a complex XML file.
The U.S. Internal Revenue Service (IRS) made a significant commitment to XML and specifies its use in its Modernized e-File (MeF) system. In MeF, each tax return is an XML document with a deep hierarchical structure that closely reflects the particular form of the underlying tax code.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-example-witsml-files-in-demo-directory.html.md.erb
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diff --git a/markdown/datamgmt/load/g-example-witsml-files-in-demo-directory.html.md.erb b/markdown/datamgmt/load/g-example-witsml-files-in-demo-directory.html.md.erb
index 0484523..e5de2b5 100644
--- a/markdown/datamgmt/load/g-example-witsml-files-in-demo-directory.html.md.erb
+++ b/markdown/datamgmt/load/g-example-witsml-files-in-demo-directory.html.md.erb
@@ -2,6 +2,25 @@
title: Example using WITSML\u2122 Files (In demo Directory)
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This example demonstrates loading sample data describing an oil rig using a Joost STX transformation. The data is in the form of a complex XML file downloaded from energistics.org.
The Wellsite Information Transfer Standard Markup Language (WITSML\u2122) is an oil industry initiative to provide open, non-proprietary, standard interfaces for technology and software to share information among oil companies, service companies, drilling contractors, application vendors, and regulatory agencies. For more information about WITSML\u2122, see [http://www.witsml.org](http://www.witsml.org).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-examples-read-fixed-width-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-examples-read-fixed-width-data.html.md.erb b/markdown/datamgmt/load/g-examples-read-fixed-width-data.html.md.erb
index 174529a..4303bad 100644
--- a/markdown/datamgmt/load/g-examples-read-fixed-width-data.html.md.erb
+++ b/markdown/datamgmt/load/g-examples-read-fixed-width-data.html.md.erb
@@ -2,6 +2,25 @@
title: Examples - Read Fixed-Width Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The following examples show how to read fixed-width data.
## Example 1 \u2013 Loading a table with PRESERVED\_BLANKS on
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-external-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-external-tables.html.md.erb b/markdown/datamgmt/load/g-external-tables.html.md.erb
index 4142a07..e833756 100644
--- a/markdown/datamgmt/load/g-external-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-external-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Accessing File-Based External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
External tables enable accessing external files as if they are regular database tables. They are often used to move data into and out of a HAWQ database.
To create an external table definition, you specify the format of your input files and the location of your external data sources. For information input file formats, see [Formatting Data Files](g-formatting-data-files.html#topic95).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-formatting-columns.html.md.erb
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diff --git a/markdown/datamgmt/load/g-formatting-columns.html.md.erb b/markdown/datamgmt/load/g-formatting-columns.html.md.erb
index b828212..6987fe2 100644
--- a/markdown/datamgmt/load/g-formatting-columns.html.md.erb
+++ b/markdown/datamgmt/load/g-formatting-columns.html.md.erb
@@ -2,6 +2,25 @@
title: Formatting Columns
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The default column or field delimiter is the horizontal `TAB` character (`0x09`) for text files and the comma character (`0x2C`) for CSV files. You can declare a single character delimiter using the `DELIMITER` clause of `COPY`, `CREATE EXTERNAL TABLE` or the `hawq load` configuration table when you define your data format. The delimiter character must appear between any two data value fields. Do not place a delimiter at the beginning or end of a row. For example, if the pipe character ( | ) is your delimiter:
``` pre
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-formatting-data-files.html.md.erb
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diff --git a/markdown/datamgmt/load/g-formatting-data-files.html.md.erb b/markdown/datamgmt/load/g-formatting-data-files.html.md.erb
index 6c929ad..28ffdfe 100644
--- a/markdown/datamgmt/load/g-formatting-data-files.html.md.erb
+++ b/markdown/datamgmt/load/g-formatting-data-files.html.md.erb
@@ -2,6 +2,25 @@
title: Formatting Data Files
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
When you use the HAWQ tools for loading and unloading data, you must specify how your data is formatted. `COPY`, `CREATE EXTERNAL TABLE, `and `hawq load` have clauses that allow you to specify how your data is formatted. Data can be delimited text (`TEXT`) or comma separated values (`CSV`) format. External data must be formatted correctly to be read by HAWQ. This topic explains the format of data files expected by HAWQ.
- **[Formatting Rows](../../datamgmt/load/g-formatting-rows.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-formatting-rows.html.md.erb
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diff --git a/markdown/datamgmt/load/g-formatting-rows.html.md.erb b/markdown/datamgmt/load/g-formatting-rows.html.md.erb
index ea9b416..0fac00c 100644
--- a/markdown/datamgmt/load/g-formatting-rows.html.md.erb
+++ b/markdown/datamgmt/load/g-formatting-rows.html.md.erb
@@ -2,6 +2,25 @@
title: Formatting Rows
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ expects rows of data to be separated by the `LF` character (Line feed, `0x0A`), `CR` (Carriage return, `0x0D`), or `CR` followed by `LF` (`CR+LF`, `0x0D 0x0A`). `LF` is the standard newline representation on UNIX or UNIX-like operating systems. Operating systems such as Windows or Mac OS X use `CR` or `CR+LF`. All of these representations of a newline are supported by HAWQ as a row delimiter. For more information, see [Importing and Exporting Fixed Width Data](g-importing-and-exporting-fixed-width-data.html#topic37).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-gpfdist-protocol.html.md.erb
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diff --git a/markdown/datamgmt/load/g-gpfdist-protocol.html.md.erb b/markdown/datamgmt/load/g-gpfdist-protocol.html.md.erb
index ee98609..0e8d8e2 100644
--- a/markdown/datamgmt/load/g-gpfdist-protocol.html.md.erb
+++ b/markdown/datamgmt/load/g-gpfdist-protocol.html.md.erb
@@ -2,6 +2,25 @@
title: gpfdist Protocol
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gpfdist://` protocol is used in a URI to reference a running `gpfdist` instance. The `gpfdist` utility serves external data files from a directory on a file host to all HAWQ segments in parallel.
`gpfdist` is located in the `$GPHOME/bin` directory on your HAWQ master host and on each segment host.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-gpfdists-protocol.html.md.erb
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diff --git a/markdown/datamgmt/load/g-gpfdists-protocol.html.md.erb b/markdown/datamgmt/load/g-gpfdists-protocol.html.md.erb
index 2f5641d..17f1e00 100644
--- a/markdown/datamgmt/load/g-gpfdists-protocol.html.md.erb
+++ b/markdown/datamgmt/load/g-gpfdists-protocol.html.md.erb
@@ -2,6 +2,25 @@
title: gpfdists Protocol
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gpfdists://` protocol is a secure version of the `gpfdist:// protocol`. To use it, you run the `gpfdist` utility with the `--ssl` option. When specified in a URI, the `gpfdists://` protocol enables encrypted communication and secure identification of the file server and the HAWQ to protect against attacks such as eavesdropping and man-in-the-middle attacks.
`gpfdists` implements SSL security in a client/server scheme with the following attributes and limitations:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-handling-errors-ext-table-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-handling-errors-ext-table-data.html.md.erb b/markdown/datamgmt/load/g-handling-errors-ext-table-data.html.md.erb
index 2b8dc78..32e786f 100644
--- a/markdown/datamgmt/load/g-handling-errors-ext-table-data.html.md.erb
+++ b/markdown/datamgmt/load/g-handling-errors-ext-table-data.html.md.erb
@@ -2,6 +2,25 @@
title: Handling Errors in External Table Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
By default, if external table data contains an error, the command fails and no data loads into the target database table. Define the external table with single row error handling to enable loading correctly formatted rows and to isolate data errors in external table data. See [Handling Load Errors](g-handling-load-errors.html#topic55).
The `gpfdist` file server uses the `HTTP` protocol. External table queries that use `LIMIT` end the connection after retrieving the rows, causing an HTTP socket error. If you use `LIMIT` in queries of external tables that use the `gpfdist://` or `http:// protocols`, ignore these errors \u2013 data is returned to the database as expected.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-handling-load-errors.html.md.erb
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diff --git a/markdown/datamgmt/load/g-handling-load-errors.html.md.erb b/markdown/datamgmt/load/g-handling-load-errors.html.md.erb
index 6faf7a5..3068889 100644
--- a/markdown/datamgmt/load/g-handling-load-errors.html.md.erb
+++ b/markdown/datamgmt/load/g-handling-load-errors.html.md.erb
@@ -2,6 +2,25 @@
title: Handling Load Errors
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Readable external tables are most commonly used to select data to load into regular database tables. You use the `CREATE TABLE AS SELECT` or `INSERT INTO `commands to query the external table data. By default, if the data contains an error, the entire command fails and the data is not loaded into the target database table.
The `SEGMENT REJECT LIMIT` clause allows you to isolate format errors in external table data and to continue loading correctly formatted rows. Use `SEGMENT REJECT LIMIT `to set an error threshold, specifying the reject limit `count` as number of `ROWS` (the default) or as a `PERCENT` of total rows (1-100).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html.md.erb b/markdown/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html.md.erb
index 534d530..f13451f 100644
--- a/markdown/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html.md.erb
+++ b/markdown/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html.md.erb
@@ -2,6 +2,25 @@
title: Identifying Invalid CSV Files in Error Table Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
If a CSV file contains invalid formatting, the *rawdata* field in the error table can contain several combined rows. For example, if a closing quote for a specific field is missing, all the following newlines are treated as embedded newlines. When this happens, HAWQ stops parsing a row when it reaches 64K, puts that 64K of data into the error table as a single row, resets the quote flag, and continues. If this happens three times during load processing, the load file is considered invalid and the entire load fails with the message "`rejected ` `N` ` or more rows`". See [Escaping in CSV Formatted Files](g-escaping-in-csv-formatted-files.html#topic101) for more information on the correct use of quotes in CSV files.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-importing-and-exporting-fixed-width-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-importing-and-exporting-fixed-width-data.html.md.erb b/markdown/datamgmt/load/g-importing-and-exporting-fixed-width-data.html.md.erb
index f49cae0..8ac2797 100644
--- a/markdown/datamgmt/load/g-importing-and-exporting-fixed-width-data.html.md.erb
+++ b/markdown/datamgmt/load/g-importing-and-exporting-fixed-width-data.html.md.erb
@@ -2,6 +2,25 @@
title: Importing and Exporting Fixed Width Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Specify custom formats for fixed-width data with the HAWQ functions `fixedwith_in` and `fixedwidth_out`. These functions already exist in the file `$GPHOME/share/postgresql/cdb_external_extensions.sql`. The following example declares a custom format, then calls the `fixedwidth_in` function to format the data.
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-installing-gpfdist.html.md.erb
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diff --git a/markdown/datamgmt/load/g-installing-gpfdist.html.md.erb b/markdown/datamgmt/load/g-installing-gpfdist.html.md.erb
index 85549df..704b392 100644
--- a/markdown/datamgmt/load/g-installing-gpfdist.html.md.erb
+++ b/markdown/datamgmt/load/g-installing-gpfdist.html.md.erb
@@ -2,6 +2,25 @@
title: Installing gpfdist
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You may choose to run `gpfdist` from a machine other than the HAWQ master, such as on a machine devoted to ETL processing. To install `gpfdist` on your ETL server, refer to [Client-Based HAWQ Load Tools](client-loadtools.html) for information related to Linux and Windows load tools installation and configuration.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-load-the-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-load-the-data.html.md.erb b/markdown/datamgmt/load/g-load-the-data.html.md.erb
index 4c88c9f..51c7184 100644
--- a/markdown/datamgmt/load/g-load-the-data.html.md.erb
+++ b/markdown/datamgmt/load/g-load-the-data.html.md.erb
@@ -2,6 +2,25 @@
title: Load the Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Create the tables with SQL statements based on the appropriate schema.
There are no special requirements for the HAWQ tables that hold loaded data. In the prices example, the following command creates the appropriate table.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-loading-and-unloading-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-loading-and-unloading-data.html.md.erb b/markdown/datamgmt/load/g-loading-and-unloading-data.html.md.erb
index 8ea43d5..e687137 100644
--- a/markdown/datamgmt/load/g-loading-and-unloading-data.html.md.erb
+++ b/markdown/datamgmt/load/g-loading-and-unloading-data.html.md.erb
@@ -2,6 +2,25 @@
title: Loading and Unloading Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The topics in this section describe methods for loading and writing data into and out of HAWQ, and how to format data files. It also covers registering HDFS files and folders directly into HAWQ internal tables.
HAWQ supports high-performance parallel data loading and unloading, and for smaller amounts of data, single file, non-parallel data import and export.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html.md.erb
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diff --git a/markdown/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html.md.erb b/markdown/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html.md.erb
index e826963..d21ad32 100644
--- a/markdown/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html.md.erb
+++ b/markdown/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html.md.erb
@@ -2,6 +2,25 @@
title: Loading and Writing Non-HDFS Custom Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ supports `TEXT` and `CSV` formats for importing and exporting data. You can load and write the data in other formats by defining and using a custom format or custom protocol.
- **[Using a Custom Format](../../datamgmt/load/g-using-a-custom-format.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-loading-data-using-an-external-table.html.md.erb
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diff --git a/markdown/datamgmt/load/g-loading-data-using-an-external-table.html.md.erb b/markdown/datamgmt/load/g-loading-data-using-an-external-table.html.md.erb
index 32a741a..bd80880 100644
--- a/markdown/datamgmt/load/g-loading-data-using-an-external-table.html.md.erb
+++ b/markdown/datamgmt/load/g-loading-data-using-an-external-table.html.md.erb
@@ -2,6 +2,25 @@
title: Loading Data Using an External Table
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Use SQL commands such as `INSERT` and `SELECT` to query a readable external table, the same way that you query a regular database table. For example, to load travel expense data from an external table, `ext_expenses`, into a database table,` expenses_travel`:
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-loading-data-with-copy.html.md.erb
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diff --git a/markdown/datamgmt/load/g-loading-data-with-copy.html.md.erb b/markdown/datamgmt/load/g-loading-data-with-copy.html.md.erb
index 72e5ac6..e47017b 100644
--- a/markdown/datamgmt/load/g-loading-data-with-copy.html.md.erb
+++ b/markdown/datamgmt/load/g-loading-data-with-copy.html.md.erb
@@ -2,6 +2,25 @@
title: Loading Data with COPY
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
`COPY FROM` copies data from a file or standard input into a table and appends the data to the table contents. `COPY` is non-parallel: data is loaded in a single process using the HAWQ master instance. Using `COPY` is only recommended for very small data files.
The `COPY` source file must be accessible to the master host. Specify the `COPY` source file name relative to the master host location.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-loading-data-with-hawqload.html.md.erb
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diff --git a/markdown/datamgmt/load/g-loading-data-with-hawqload.html.md.erb b/markdown/datamgmt/load/g-loading-data-with-hawqload.html.md.erb
index 68e4459..9fa4f1c 100644
--- a/markdown/datamgmt/load/g-loading-data-with-hawqload.html.md.erb
+++ b/markdown/datamgmt/load/g-loading-data-with-hawqload.html.md.erb
@@ -2,6 +2,25 @@
title: Loading Data with hawq load
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The HAWQ `hawq load` utility loads data using readable external tables and the HAWQ parallel file server ( `gpfdist` or `gpfdists`). It handles parallel file-based external table setup and allows users to configure their data format, external table definition, and `gpfdist` or `gpfdists` setup in a single configuration file.
## <a id="topic62__du168147"></a>To use hawq load
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-moving-data-between-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-moving-data-between-tables.html.md.erb b/markdown/datamgmt/load/g-moving-data-between-tables.html.md.erb
index 2603ae4..bba28cc 100644
--- a/markdown/datamgmt/load/g-moving-data-between-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-moving-data-between-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Moving Data between Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can use `CREATE TABLE AS` or `INSERT...SELECT` to load external and web external table data into another (non-external) database table, and the data will be loaded in parallel according to the external or web external table definition.
If an external table file or web external table data source has an error, one of the following will happen, depending on the isolation mode used:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-optimizing-data-load-and-query-performance.html.md.erb
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diff --git a/markdown/datamgmt/load/g-optimizing-data-load-and-query-performance.html.md.erb b/markdown/datamgmt/load/g-optimizing-data-load-and-query-performance.html.md.erb
index ff1c230..96083a5 100644
--- a/markdown/datamgmt/load/g-optimizing-data-load-and-query-performance.html.md.erb
+++ b/markdown/datamgmt/load/g-optimizing-data-load-and-query-performance.html.md.erb
@@ -2,6 +2,25 @@
title: Optimizing Data Load and Query Performance
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Use the following tip to help optimize your data load and subsequent query performance.
- Run `ANALYZE` after loading data. If you significantly altered the data in a table, run `ANALYZE` or `VACUUM ANALYZE` (system catalog tables only) to update table statistics for the query optimizer. Current statistics ensure that the optimizer makes the best decisions during query planning and avoids poor performance due to inaccurate or nonexistent statistics.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-register_files.html.md.erb
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diff --git a/markdown/datamgmt/load/g-register_files.html.md.erb b/markdown/datamgmt/load/g-register_files.html.md.erb
index 25c24ca..c3a70be 100644
--- a/markdown/datamgmt/load/g-register_files.html.md.erb
+++ b/markdown/datamgmt/load/g-register_files.html.md.erb
@@ -2,6 +2,25 @@
title: Registering Files into HAWQ Internal Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `hawq register` utility loads and registers HDFS data files or folders into HAWQ internal tables. Files can be read directly, rather than having to be copied or loaded, resulting in higher performance and more efficient transaction processing.
Data from the file or directory specified by \<hdfsfilepath\> is loaded into the appropriate HAWQ table directory in HDFS and the utility updates the corresponding HAWQ metadata for the files. Either AO or Parquet-formatted tables in HDFS can be loaded into a corresponding table in HAWQ.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-representing-null-values.html.md.erb
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diff --git a/markdown/datamgmt/load/g-representing-null-values.html.md.erb b/markdown/datamgmt/load/g-representing-null-values.html.md.erb
index 4d4ffdd..a6ca89d 100644
--- a/markdown/datamgmt/load/g-representing-null-values.html.md.erb
+++ b/markdown/datamgmt/load/g-representing-null-values.html.md.erb
@@ -2,6 +2,25 @@
title: Representing NULL Values
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
`NULL` represents an unknown piece of data in a column or field. Within your data files you can designate a string to represent null values. The default string is `\N` (backslash-N) in `TEXT` mode, or an empty value with no quotations in `CSV` mode. You can also declare a different string using the `NULL` clause of `COPY`, `CREATE EXTERNAL TABLE `or the `hawq load` control file when defining your data format. For example, you can use an empty string if you do not want to distinguish nulls from empty strings. When using the HAWQ loading tools, any data item that matches the designated null string is considered a null value.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html.md.erb
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diff --git a/markdown/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html.md.erb b/markdown/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html.md.erb
index ba0603c..d08231f 100644
--- a/markdown/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html.md.erb
+++ b/markdown/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html.md.erb
@@ -2,6 +2,25 @@
title: Running COPY in Single Row Error Isolation Mode
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
By default, `COPY` stops an operation at the first error: if the data contains an error, the operation fails and no data loads. If you run `COPY FROM` in *single row error isolation mode*, HAWQ skips rows that contain format errors and loads properly formatted rows. Single row error isolation mode applies only to rows in the input file that contain format errors. If the data contains a contraint error such as violation of a `NOT NULL` or `CHECK` constraint, the operation fails and no data loads.
Specifying `SEGMENT REJECT LIMIT` runs the `COPY` operation in single row error isolation mode. Specify the acceptable number of error rows on each segment, after which the entire `COPY FROM` operation fails and no rows load. The error row count is for each HAWQ segment, not for the entire load operation.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-starting-and-stopping-gpfdist.html.md.erb
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diff --git a/markdown/datamgmt/load/g-starting-and-stopping-gpfdist.html.md.erb b/markdown/datamgmt/load/g-starting-and-stopping-gpfdist.html.md.erb
index 7e2cca9..7d068fa 100644
--- a/markdown/datamgmt/load/g-starting-and-stopping-gpfdist.html.md.erb
+++ b/markdown/datamgmt/load/g-starting-and-stopping-gpfdist.html.md.erb
@@ -2,6 +2,25 @@
title: Starting and Stopping gpfdist
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can start `gpfdist` in your current directory location or in any directory that you specify. The default port is `8080`.
From your current directory, type:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-transfer-and-store-the-data.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/datamgmt/load/g-transfer-and-store-the-data.html.md.erb b/markdown/datamgmt/load/g-transfer-and-store-the-data.html.md.erb
index 8a6d7ab..3155839 100644
--- a/markdown/datamgmt/load/g-transfer-and-store-the-data.html.md.erb
+++ b/markdown/datamgmt/load/g-transfer-and-store-the-data.html.md.erb
@@ -2,6 +2,25 @@
title: Transfer and Store the Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Use one of the following approaches to transform the data with `gpfdist`.
- `GPLOAD` supports only input transformations, but is easier to implement in many cases.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-transforming-with-gpload.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/datamgmt/load/g-transforming-with-gpload.html.md.erb b/markdown/datamgmt/load/g-transforming-with-gpload.html.md.erb
index 438fedb..4c2e146 100644
--- a/markdown/datamgmt/load/g-transforming-with-gpload.html.md.erb
+++ b/markdown/datamgmt/load/g-transforming-with-gpload.html.md.erb
@@ -2,6 +2,25 @@
title: Transforming with GPLOAD
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
To transform data using the `GPLOAD ` control file, you must specify both the file name for the `TRANSFORM_CONFIG` file and the name of the `TRANSFORM` operation in the `INPUT` section of the `GPLOAD` control file.
- `TRANSFORM_CONFIG `specifies the name of the `gpfdist` configuration file.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-transforming-with-insert-into-select-from.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/datamgmt/load/g-transforming-with-insert-into-select-from.html.md.erb b/markdown/datamgmt/load/g-transforming-with-insert-into-select-from.html.md.erb
index d91cc93..342c907 100644
--- a/markdown/datamgmt/load/g-transforming-with-insert-into-select-from.html.md.erb
+++ b/markdown/datamgmt/load/g-transforming-with-insert-into-select-from.html.md.erb
@@ -2,6 +2,25 @@
title: Transforming with INSERT INTO SELECT FROM
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Specify the transformation in the `CREATE EXTERNAL TABLE` definition's `LOCATION` clause. For example, the transform is shown in bold in the following command. (Run `gpfdist` first, using the command `gpfdist -c config.yaml`).
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-transforming-xml-data.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/datamgmt/load/g-transforming-xml-data.html.md.erb b/markdown/datamgmt/load/g-transforming-xml-data.html.md.erb
index f9520bb..ca183ae 100644
--- a/markdown/datamgmt/load/g-transforming-xml-data.html.md.erb
+++ b/markdown/datamgmt/load/g-transforming-xml-data.html.md.erb
@@ -2,6 +2,25 @@
title: Transforming XML Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The HAWQ data loader *gpfdist* provides transformation features to load XML data into a table and to write data from the HAWQ to XML files. The following diagram shows *gpfdist* performing an XML transform.
<a id="topic75__du185408"></a>
[7/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
HAWQ-1305 Add apache license header to doc source
Project: http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/commit/a42c05a9
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/tree/a42c05a9
Diff: http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/diff/a42c05a9
Branch: refs/heads/develop
Commit: a42c05a957a128ed7fd5f492544681d548f826ca
Parents: 18e72d6
Author: David Yozie <yo...@apache.org>
Authored: Wed Feb 1 09:32:04 2017 -0800
Committer: David Yozie <yo...@apache.org>
Committed: Wed Feb 1 09:32:12 2017 -0800
----------------------------------------------------------------------
...ackingUpandRestoringHAWQDatabases.html.md.erb | 19 +++++++++++++++++++
markdown/admin/ClusterExpansion.html.md.erb | 19 +++++++++++++++++++
markdown/admin/ClusterShrink.html.md.erb | 19 +++++++++++++++++++
markdown/admin/FaultTolerance.html.md.erb | 19 +++++++++++++++++++
...cesandHighAvailabilityEnabledHDFS.html.md.erb | 19 +++++++++++++++++++
markdown/admin/HighAvailability.html.md.erb | 19 +++++++++++++++++++
markdown/admin/MasterMirroring.html.md.erb | 19 +++++++++++++++++++
.../admin/RecommendedMonitoringTasks.html.md.erb | 19 +++++++++++++++++++
markdown/admin/RunningHAWQ.html.md.erb | 19 +++++++++++++++++++
markdown/admin/logfiles.html.md.erb | 19 +++++++++++++++++++
markdown/admin/maintain.html.md.erb | 19 +++++++++++++++++++
markdown/admin/monitor.html.md.erb | 19 +++++++++++++++++++
markdown/admin/setuphawqopenv.html.md.erb | 19 +++++++++++++++++++
markdown/admin/startstop.html.md.erb | 19 +++++++++++++++++++
.../HAWQBestPracticesOverview.html.md.erb | 19 +++++++++++++++++++
.../general_bestpractices.html.md.erb | 19 +++++++++++++++++++
.../managing_data_bestpractices.html.md.erb | 19 +++++++++++++++++++
.../managing_resources_bestpractices.html.md.erb | 19 +++++++++++++++++++
.../operating_hawq_bestpractices.html.md.erb | 19 +++++++++++++++++++
.../querying_data_bestpractices.html.md.erb | 19 +++++++++++++++++++
.../secure_bestpractices.html.md.erb | 19 +++++++++++++++++++
markdown/clientaccess/client_auth.html.md.erb | 19 +++++++++++++++++++
.../clientaccess/disable-kerberos.html.md.erb | 19 +++++++++++++++++++
.../g-connecting-with-psql.html.md.erb | 19 +++++++++++++++++++
...g-database-application-interfaces.html.md.erb | 19 +++++++++++++++++++
...g-establishing-a-database-session.html.md.erb | 19 +++++++++++++++++++
...hawq-database-client-applications.html.md.erb | 19 +++++++++++++++++++
.../g-supported-client-applications.html.md.erb | 19 +++++++++++++++++++
...oubleshooting-connection-problems.html.md.erb | 19 +++++++++++++++++++
markdown/clientaccess/index.md.erb | 19 +++++++++++++++++++
markdown/clientaccess/kerberos.html.md.erb | 19 +++++++++++++++++++
markdown/clientaccess/ldap.html.md.erb | 19 +++++++++++++++++++
markdown/clientaccess/roles_privs.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/BasicDataOperations.html.md.erb | 19 +++++++++++++++++++
markdown/datamgmt/ConcurrencyControl.html.md.erb | 19 +++++++++++++++++++
.../HAWQInputFormatforMapReduce.html.md.erb | 19 +++++++++++++++++++
markdown/datamgmt/Transactions.html.md.erb | 19 +++++++++++++++++++
markdown/datamgmt/about_statistics.html.md.erb | 19 +++++++++++++++++++
markdown/datamgmt/dml.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/client-loadtools.html.md.erb | 19 +++++++++++++++++++
...creating-external-tables-examples.html.md.erb | 19 +++++++++++++++++++
...out-gpfdist-setup-and-performance.html.md.erb | 19 +++++++++++++++++++
.../load/g-character-encoding.html.md.erb | 19 +++++++++++++++++++
...command-based-web-external-tables.html.md.erb | 19 +++++++++++++++++++
.../load/g-configuration-file-format.html.md.erb | 19 +++++++++++++++++++
...g-controlling-segment-parallelism.html.md.erb | 19 +++++++++++++++++++
...-table-and-declare-a-reject-limit.html.md.erb | 19 +++++++++++++++++++
...ing-and-using-web-external-tables.html.md.erb | 19 +++++++++++++++++++
...e-with-single-row-error-isolation.html.md.erb | 19 +++++++++++++++++++
...based-writable-external-web-table.html.md.erb | 19 +++++++++++++++++++
...ile-based-writable-external-table.html.md.erb | 19 +++++++++++++++++++
...termine-the-transformation-schema.html.md.erb | 19 +++++++++++++++++++
...r-web-or-writable-external-tables.html.md.erb | 19 +++++++++++++++++++
...g-escaping-in-csv-formatted-files.html.md.erb | 19 +++++++++++++++++++
...-escaping-in-text-formatted-files.html.md.erb | 19 +++++++++++++++++++
markdown/datamgmt/load/g-escaping.html.md.erb | 19 +++++++++++++++++++
...se-publications-in-demo-directory.html.md.erb | 19 +++++++++++++++++++
...-example-hawq-file-server-gpfdist.html.md.erb | 19 +++++++++++++++++++
...s-mef-xml-files-in-demo-directory.html.md.erb | 19 +++++++++++++++++++
...le-witsml-files-in-demo-directory.html.md.erb | 19 +++++++++++++++++++
.../g-examples-read-fixed-width-data.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/g-external-tables.html.md.erb | 19 +++++++++++++++++++
.../load/g-formatting-columns.html.md.erb | 19 +++++++++++++++++++
.../load/g-formatting-data-files.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/g-formatting-rows.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/g-gpfdist-protocol.html.md.erb | 19 +++++++++++++++++++
.../load/g-gpfdists-protocol.html.md.erb | 19 +++++++++++++++++++
.../g-handling-errors-ext-table-data.html.md.erb | 19 +++++++++++++++++++
.../load/g-handling-load-errors.html.md.erb | 19 +++++++++++++++++++
...lid-csv-files-in-error-table-data.html.md.erb | 19 +++++++++++++++++++
...ng-and-exporting-fixed-width-data.html.md.erb | 19 +++++++++++++++++++
.../load/g-installing-gpfdist.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/g-load-the-data.html.md.erb | 19 +++++++++++++++++++
.../g-loading-and-unloading-data.html.md.erb | 19 +++++++++++++++++++
...-and-writing-non-hdfs-custom-data.html.md.erb | 19 +++++++++++++++++++
...ding-data-using-an-external-table.html.md.erb | 19 +++++++++++++++++++
.../load/g-loading-data-with-copy.html.md.erb | 19 +++++++++++++++++++
.../g-loading-data-with-hawqload.html.md.erb | 19 +++++++++++++++++++
.../g-moving-data-between-tables.html.md.erb | 19 +++++++++++++++++++
...g-data-load-and-query-performance.html.md.erb | 19 +++++++++++++++++++
.../datamgmt/load/g-register_files.html.md.erb | 19 +++++++++++++++++++
.../load/g-representing-null-values.html.md.erb | 19 +++++++++++++++++++
...n-single-row-error-isolation-mode.html.md.erb | 19 +++++++++++++++++++
.../g-starting-and-stopping-gpfdist.html.md.erb | 19 +++++++++++++++++++
.../g-transfer-and-store-the-data.html.md.erb | 19 +++++++++++++++++++
.../load/g-transforming-with-gpload.html.md.erb | 19 +++++++++++++++++++
...ming-with-insert-into-select-from.html.md.erb | 19 +++++++++++++++++++
.../load/g-transforming-xml-data.html.md.erb | 19 +++++++++++++++++++
.../load/g-troubleshooting-gpfdist.html.md.erb | 19 +++++++++++++++++++
...unloading-data-from-hawq-database.html.md.erb | 19 +++++++++++++++++++
...a-using-a-writable-external-table.html.md.erb | 19 +++++++++++++++++++
.../load/g-unloading-data-using-copy.html.md.erb | 19 +++++++++++++++++++
.../g-url-based-web-external-tables.html.md.erb | 19 +++++++++++++++++++
.../load/g-using-a-custom-format.html.md.erb | 19 +++++++++++++++++++
...ng-the-hawq-file-server--gpfdist-.html.md.erb | 19 +++++++++++++++++++
...orking-with-file-based-ext-tables.html.md.erb | 19 +++++++++++++++++++
.../load/g-write-a-transform.html.md.erb | 19 +++++++++++++++++++
...g-write-the-gpfdist-configuration.html.md.erb | 19 +++++++++++++++++++
.../g-xml-transformation-examples.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-database.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-partition.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-schema.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-storage.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-table.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-tablespace.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl-view.html.md.erb | 19 +++++++++++++++++++
markdown/ddl/ddl.html.md.erb | 19 +++++++++++++++++++
markdown/install/aws-config.html.md.erb | 19 +++++++++++++++++++
markdown/install/select-hosts.html.md.erb | 19 +++++++++++++++++++
markdown/overview/ElasticSegments.html.md.erb | 19 +++++++++++++++++++
markdown/overview/HAWQArchitecture.html.md.erb | 19 +++++++++++++++++++
markdown/overview/HAWQOverview.html.md.erb | 19 +++++++++++++++++++
markdown/overview/HDFSCatalogCache.html.md.erb | 19 +++++++++++++++++++
markdown/overview/ManagementTools.html.md.erb | 19 +++++++++++++++++++
markdown/overview/RedundancyFailover.html.md.erb | 19 +++++++++++++++++++
markdown/overview/ResourceManagement.html.md.erb | 19 +++++++++++++++++++
.../TableDistributionStorage.html.md.erb | 19 +++++++++++++++++++
markdown/overview/system-overview.html.md.erb | 19 +++++++++++++++++++
.../plext/UsingProceduralLanguages.html.md.erb | 19 +++++++++++++++++++
markdown/plext/builtin_langs.html.md.erb | 19 +++++++++++++++++++
markdown/plext/using_pgcrypto.html.md.erb | 19 +++++++++++++++++++
markdown/plext/using_pljava.html.md.erb | 19 +++++++++++++++++++
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markdown/plext/using_plpgsql.html.md.erb | 19 +++++++++++++++++++
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markdown/plext/using_plr.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/ConfigurePXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/HBasePXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/HDFSFileDataPXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/HDFSWritablePXF.html.md.erb | 19 +++++++++++++++++++
.../pxf/HawqExtensionFrameworkPXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/HivePXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/InstallPXFPlugins.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/JsonPXF.html.md.erb | 19 +++++++++++++++++++
.../PXFExternalTableandAPIReference.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/ReadWritePXF.html.md.erb | 19 +++++++++++++++++++
markdown/pxf/TroubleshootingPXF.html.md.erb | 19 +++++++++++++++++++
markdown/query/HAWQQueryProcessing.html.md.erb | 19 +++++++++++++++++++
markdown/query/defining-queries.html.md.erb | 19 +++++++++++++++++++
markdown/query/functions-operators.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/HAWQDataTypes.html.md.erb | 19 +++++++++++++++++++
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...FSConfigurationParameterReference.html.md.erb | 19 +++++++++++++++++++
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.../reference/catalog/pg_compression.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_constraint.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_conversion.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_database.html.md.erb | 19 +++++++++++++++++++
markdown/reference/catalog/pg_depend.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_description.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_exttable.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_filespace.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/catalog/pg_index.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_inherits.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_language.html.md.erb | 19 +++++++++++++++++++
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.../reference/catalog/pg_partition.html.md.erb | 19 +++++++++++++++++++
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.../reference/catalog/pg_partitions.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/catalog/pg_proc.html.md.erb | 19 +++++++++++++++++++
.../reference/catalog/pg_resqueue.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/catalog/pg_roles.html.md.erb | 19 +++++++++++++++++++
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.../cli/client_utilities/pg_restore.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/CHECKPOINT.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/COMMIT.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/COPY.html.md.erb | 19 +++++++++++++++++++
.../reference/sql/CREATE-AGGREGATE.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/CREATE-CAST.html.md.erb | 19 +++++++++++++++++++
.../reference/sql/CREATE-CONVERSION.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/CREATE-GROUP.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/INSERT.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/PREPARE.html.md.erb | 19 +++++++++++++++++++
.../reference/sql/REASSIGN-OWNED.html.md.erb | 19 +++++++++++++++++++
.../reference/sql/RELEASE-SAVEPOINT.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/RESET.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/REVOKE.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/SET-ROLE.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/SET.html.md.erb | 19 +++++++++++++++++++
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markdown/reference/sql/TRUNCATE.html.md.erb | 19 +++++++++++++++++++
markdown/reference/sql/VACUUM.html.md.erb | 19 +++++++++++++++++++
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.../requirements/system-requirements.html.md.erb | 19 +++++++++++++++++++
.../ConfigureResourceManagement.html.md.erb | 19 +++++++++++++++++++
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markdown/resourcemgmt/ResourceQueues.html.md.erb | 19 +++++++++++++++++++
.../resourcemgmt/YARNIntegration.html.md.erb | 19 +++++++++++++++++++
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markdown/resourcemgmt/index.md.erb | 19 +++++++++++++++++++
.../troubleshooting/Troubleshooting.html.md.erb | 19 +++++++++++++++++++
356 files changed, 6764 insertions(+)
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http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/BackingUpandRestoringHAWQDatabases.html.md.erb
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diff --git a/markdown/admin/BackingUpandRestoringHAWQDatabases.html.md.erb b/markdown/admin/BackingUpandRestoringHAWQDatabases.html.md.erb
index 78b0dec..f1e651a 100644
--- a/markdown/admin/BackingUpandRestoringHAWQDatabases.html.md.erb
+++ b/markdown/admin/BackingUpandRestoringHAWQDatabases.html.md.erb
@@ -2,6 +2,25 @@
title: Backing Up and Restoring HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This chapter provides information on backing up and restoring databases in HAWQ system.
As an administrator, you will need to back up and restore your database. HAWQ provides three utilities to help you back up your data:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/ClusterExpansion.html.md.erb
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diff --git a/markdown/admin/ClusterExpansion.html.md.erb b/markdown/admin/ClusterExpansion.html.md.erb
index d3d921b..f282903 100644
--- a/markdown/admin/ClusterExpansion.html.md.erb
+++ b/markdown/admin/ClusterExpansion.html.md.erb
@@ -2,6 +2,25 @@
title: Expanding a Cluster
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Apache HAWQ supports dynamic node expansion. You can add segment nodes while HAWQ is running without having to suspend or terminate cluster operations.
**Note:** This topic describes how to expand a cluster using the command-line interface. If you are using Ambari to manage your HAWQ cluster, see [Expanding the HAWQ Cluster](../admin/ambari-admin.html#amb-expand) in [Managing HAWQ Using Ambari](../admin/ambari-admin.html)
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/ClusterShrink.html.md.erb
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diff --git a/markdown/admin/ClusterShrink.html.md.erb b/markdown/admin/ClusterShrink.html.md.erb
index 33c5cc2..32c2938 100644
--- a/markdown/admin/ClusterShrink.html.md.erb
+++ b/markdown/admin/ClusterShrink.html.md.erb
@@ -2,6 +2,25 @@
title: Removing a Node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic outlines the proper procedure for removing a node from a HAWQ cluster.
In general, you should not need to remove nodes manually from running HAWQ clusters. HAWQ isolates any nodes that HAWQ detects as failing due to hardware or other types of errors.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/FaultTolerance.html.md.erb
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diff --git a/markdown/admin/FaultTolerance.html.md.erb b/markdown/admin/FaultTolerance.html.md.erb
index fc9de93..2334b04 100644
--- a/markdown/admin/FaultTolerance.html.md.erb
+++ b/markdown/admin/FaultTolerance.html.md.erb
@@ -2,6 +2,25 @@
title: Understanding the Fault Tolerance Service
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The fault tolerance service (FTS) enables HAWQ to continue operating in the event that a segment node fails. The fault tolerance service runs automatically and requires no additional configuration requirements.
Each segment runs a resource manager process that periodically sends (by default, every 30 seconds) the segment\u2019s status to the master's resource manager process. This interval is controlled by the `hawq_rm_segment_heartbeat_interval` server configuration parameter.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html.md.erb
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diff --git a/markdown/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html.md.erb b/markdown/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html.md.erb
index b4284be..6923494 100644
--- a/markdown/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html.md.erb
+++ b/markdown/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Filespaces and High Availability Enabled HDFS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
If you initialized HAWQ without the HDFS High Availability \(HA\) feature, you can enable it by using the following procedure.
## <a id="enablingthehdfsnamenodehafeature"></a>Enabling the HDFS NameNode HA Feature
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/HighAvailability.html.md.erb
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diff --git a/markdown/admin/HighAvailability.html.md.erb b/markdown/admin/HighAvailability.html.md.erb
index 0c2e32b..a6dac79 100644
--- a/markdown/admin/HighAvailability.html.md.erb
+++ b/markdown/admin/HighAvailability.html.md.erb
@@ -2,6 +2,25 @@
title: High Availability in HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A HAWQ cluster can be made highly available by providing fault-tolerant hardware, by enabling HAWQ or HDFS high-availability features, and by performing regular monitoring and maintenance procedures to ensure the health of all system components.
Hardware components eventually fail either due to normal wear or to unexpected circumstances. Loss of power can lead to temporarily unavailable components. You can make a system highly available by providing redundant standbys for components that can fail so services can continue uninterrupted when a failure does occur. In some cases, the cost of redundancy is higher than a user\u2019s tolerance for interruption in service. When this is the case, the goal is to ensure that full service is able to be restored, and can be restored within an expected timeframe.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/MasterMirroring.html.md.erb
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diff --git a/markdown/admin/MasterMirroring.html.md.erb b/markdown/admin/MasterMirroring.html.md.erb
index b9352f0..80aa242 100644
--- a/markdown/admin/MasterMirroring.html.md.erb
+++ b/markdown/admin/MasterMirroring.html.md.erb
@@ -2,6 +2,25 @@
title: Using Master Mirroring
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
There are two masters in a HAWQ cluster-- a primary master and a standby master. Clients connect to the primary master and queries can be executed only on the primary master.
You deploy a backup or mirror of the master instance on a separate host machine from the primary master so that the cluster can tolerate a single host failure. A backup master or standby master serves as a warm standby if the primary master becomes non-operational. You create a standby master from the primary master while the primary is online.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/RecommendedMonitoringTasks.html.md.erb
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diff --git a/markdown/admin/RecommendedMonitoringTasks.html.md.erb b/markdown/admin/RecommendedMonitoringTasks.html.md.erb
index 5083b44..1c2c6df 100644
--- a/markdown/admin/RecommendedMonitoringTasks.html.md.erb
+++ b/markdown/admin/RecommendedMonitoringTasks.html.md.erb
@@ -2,6 +2,25 @@
title: Recommended Monitoring and Maintenance Tasks
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section lists monitoring and maintenance activities recommended to ensure high availability and consistent performance of your HAWQ cluster.
The tables in the following sections suggest activities that a HAWQ System Administrator can perform periodically to ensure that all components of the system are operating optimally. Monitoring activities help you to detect and diagnose problems early. Maintenance activities help you to keep the system up-to-date and avoid deteriorating performance, for example, from bloated system tables or diminishing free disk space.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/RunningHAWQ.html.md.erb
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diff --git a/markdown/admin/RunningHAWQ.html.md.erb b/markdown/admin/RunningHAWQ.html.md.erb
index c7de1d5..45164d9 100644
--- a/markdown/admin/RunningHAWQ.html.md.erb
+++ b/markdown/admin/RunningHAWQ.html.md.erb
@@ -2,6 +2,25 @@
title: Running a HAWQ Cluster
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides information for system administrators responsible for administering a HAWQ deployment.
You should have some knowledge of Linux/UNIX system administration, database management systems, database administration, and structured query language \(SQL\) to administer a HAWQ cluster. Because HAWQ is based on PostgreSQL, you should also have some familiarity with PostgreSQL. The HAWQ documentation calls out similarities between HAWQ and PostgreSQL features throughout.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/logfiles.html.md.erb
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diff --git a/markdown/admin/logfiles.html.md.erb b/markdown/admin/logfiles.html.md.erb
index 3202ed3..799191d 100644
--- a/markdown/admin/logfiles.html.md.erb
+++ b/markdown/admin/logfiles.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Administrative Log Files
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Log files are files that include messages and other information about your HAWQ deployment, including the database and utilities. HAWQ administrative log files reside in pre-defined or configured locations on the local file system of the HAWQ node. These log files are distinctly located, formatted, configured, and managed.
Every database instance in HAWQ \(master, standby, and segments\) runs a PostgreSQL database server with its own server log file. You generate log files when you invoke HAWQ management utilities directly, or indirectly via Ambari management operations. Additionally, other components in your HAWQ cluster (PXF, HDFS) generate log files of their own.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/maintain.html.md.erb
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--- a/markdown/admin/maintain.html.md.erb
+++ b/markdown/admin/maintain.html.md.erb
@@ -2,6 +2,25 @@
title: Routine System Maintenance Tasks
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
## <a id="overview-topic"></a>Overview
To keep a HAWQ system running efficiently, the database must be regularly cleared of expired data and the table statistics must be updated so that the query optimizer has accurate information.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/monitor.html.md.erb
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index c6e96f1..bfd1ec0 100644
--- a/markdown/admin/monitor.html.md.erb
+++ b/markdown/admin/monitor.html.md.erb
@@ -2,6 +2,25 @@
title: Monitoring a HAWQ System
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can monitor a HAWQ system using a variety of tools included with the system or available as add-ons.
Observing the HAWQ system day-to-day performance helps administrators understand the system behavior, plan workflow, and troubleshoot problems. This chapter discusses tools for monitoring database performance and activity.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/setuphawqopenv.html.md.erb
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index 01e62ce..b7f69d8 100644
--- a/markdown/admin/setuphawqopenv.html.md.erb
+++ b/markdown/admin/setuphawqopenv.html.md.erb
@@ -2,6 +2,25 @@
title: Introducing the HAWQ Operating Environment
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Before invoking operations on a HAWQ cluster, you must set up your HAWQ environment. This set up is required for both administrative and non-administrative HAWQ users.
## <a id="hawq_setupenv"></a>Procedure: Setting Up Your HAWQ Operating Environment
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/admin/startstop.html.md.erb
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--- a/markdown/admin/startstop.html.md.erb
+++ b/markdown/admin/startstop.html.md.erb
@@ -2,6 +2,25 @@
title: Starting and Stopping HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
In a HAWQ DBMS, the database server instances \(the master and all segments\) are started or stopped across all of the hosts in the system in such a way that they can work together as a unified DBMS.
Because a HAWQ system is distributed across many machines, the process for starting and stopping a HAWQ system is different than the process for starting and stopping a regular PostgreSQL DBMS.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/HAWQBestPracticesOverview.html.md.erb
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diff --git a/markdown/bestpractices/HAWQBestPracticesOverview.html.md.erb b/markdown/bestpractices/HAWQBestPracticesOverview.html.md.erb
index 13b4dca..5fa7769 100644
--- a/markdown/bestpractices/HAWQBestPracticesOverview.html.md.erb
+++ b/markdown/bestpractices/HAWQBestPracticesOverview.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This chapter provides best practices on using the components and features that are part of a HAWQ system.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/general_bestpractices.html.md.erb
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diff --git a/markdown/bestpractices/general_bestpractices.html.md.erb b/markdown/bestpractices/general_bestpractices.html.md.erb
index 503887b..9332d14 100644
--- a/markdown/bestpractices/general_bestpractices.html.md.erb
+++ b/markdown/bestpractices/general_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Best Practices
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic addresses general best practices for users who are new to HAWQ.
When using HAWQ, adhere to the following guidelines for best results:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/managing_data_bestpractices.html.md.erb
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--- a/markdown/bestpractices/managing_data_bestpractices.html.md.erb
+++ b/markdown/bestpractices/managing_data_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Managing Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes best practices for creating databases, loading data, partioning data, and recovering data in HAWQ.
## <a id="topic_xhy_v2j_1v"></a>Best Practices for Loading Data
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/managing_resources_bestpractices.html.md.erb
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--- a/markdown/bestpractices/managing_resources_bestpractices.html.md.erb
+++ b/markdown/bestpractices/managing_resources_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Managing Resources
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes best practices for managing resources in HAWQ.
## <a id="topic_ikz_ndx_15"></a>Best Practices for Configuring Resource Management
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/operating_hawq_bestpractices.html.md.erb
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index 9dc56e9..b19ba25 100644
--- a/markdown/bestpractices/operating_hawq_bestpractices.html.md.erb
+++ b/markdown/bestpractices/operating_hawq_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Operating HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides best practices for operating HAWQ, including recommendations for stopping, starting and monitoring HAWQ.
## <a id="best_practice_config"></a>Best Practices for Configuring HAWQ Parameters
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/querying_data_bestpractices.html.md.erb
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--- a/markdown/bestpractices/querying_data_bestpractices.html.md.erb
+++ b/markdown/bestpractices/querying_data_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Querying Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
To obtain the best results when querying data in HAWQ, review the best practices described in this topic.
## <a id="virtual_seg_performance"></a>Factors Impacting Query Performance
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/bestpractices/secure_bestpractices.html.md.erb
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--- a/markdown/bestpractices/secure_bestpractices.html.md.erb
+++ b/markdown/bestpractices/secure_bestpractices.html.md.erb
@@ -2,6 +2,25 @@
title: Best Practices for Securing HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
To secure your HAWQ deployment, review the recommendations listed in this topic.
- Set up SSL to encrypt your client server communication channel. See [Encrypting Client/Server Connections](../clientaccess/client_auth.html#topic5).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/client_auth.html.md.erb
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diff --git a/markdown/clientaccess/client_auth.html.md.erb b/markdown/clientaccess/client_auth.html.md.erb
index a13f4e1..33dc717 100644
--- a/markdown/clientaccess/client_auth.html.md.erb
+++ b/markdown/clientaccess/client_auth.html.md.erb
@@ -2,6 +2,25 @@
title: Configuring Client Authentication
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
When a HAWQ system is first initialized, the system contains one predefined *superuser* role. This role will have the same name as the operating system user who initialized the HAWQ system. This role is referred to as `gpadmin`. By default, the system is configured to only allow local connections to the database from the `gpadmin` role. To allow any other roles to connect, or to allow connections from remote hosts, you configure HAWQ to allow such connections.
## <a id="topic2"></a>Allowing Connections to HAWQ
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/disable-kerberos.html.md.erb
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diff --git a/markdown/clientaccess/disable-kerberos.html.md.erb b/markdown/clientaccess/disable-kerberos.html.md.erb
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+++ b/markdown/clientaccess/disable-kerberos.html.md.erb
@@ -2,6 +2,25 @@
title: Disabling Kerberos Security
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Follow these steps to disable Kerberos security for HAWQ and PXF for manual installations.
**Note:** If you install or manage your cluster using Ambari, then the HAWQ Ambari plug-in automatically disables security for HAWQ and PXF when you disable security for Hadoop. The following instructions are only necessary for manual installations, or when Hadoop security is disabled outside of Ambari.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/g-connecting-with-psql.html.md.erb
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--- a/markdown/clientaccess/g-connecting-with-psql.html.md.erb
+++ b/markdown/clientaccess/g-connecting-with-psql.html.md.erb
@@ -2,6 +2,25 @@
title: Connecting with psql
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Depending on the default values used or the environment variables you have set, the following examples show how to access a database via `psql`:
``` bash
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/g-database-application-interfaces.html.md.erb
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+++ b/markdown/clientaccess/g-database-application-interfaces.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Database Drivers and APIs
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You may want to connect your existing Business Intelligence (BI) or Analytics applications with HAWQ. The database application programming interfaces most commonly used with HAWQ are the Postgres and ODBC and JDBC APIs.
HAWQ provides the following connectivity tools for connecting to the database:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/g-establishing-a-database-session.html.md.erb
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+++ b/markdown/clientaccess/g-establishing-a-database-session.html.md.erb
@@ -2,6 +2,25 @@
title: Establishing a Database Session
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Users can connect to HAWQ using a PostgreSQL-compatible client program, such as `psql`. Users and administrators *always* connect to HAWQ through the *master*; the segments cannot accept client connections.
In order to establish a connection to the HAWQ master, you will need to know the following connection information and configure your client program accordingly.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/g-hawq-database-client-applications.html.md.erb
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+++ b/markdown/clientaccess/g-hawq-database-client-applications.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Client Applications
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ comes installed with a number of client utility applications located in the `$GPHOME/bin` directory of your HAWQ master host installation. The following are the most commonly used client utility applications:
|Name|Usage|
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@@ -2,6 +2,25 @@
title: Supported Client Applications
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Users can connect to HAWQ using various client applications:
- A number of [HAWQ Client Applications](g-hawq-database-client-applications.html) are provided with your HAWQ installation. The `psql` client application provides an interactive command-line interface to HAWQ.
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@@ -2,6 +2,25 @@
title: Troubleshooting Connection Problems
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A number of things can prevent a client application from successfully connecting to HAWQ. This topic explains some of the common causes of connection problems and how to correct them.
|Problem|Solution|
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/index.md.erb
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+++ b/markdown/clientaccess/index.md.erb
@@ -2,6 +2,25 @@
title: Managing Client Access
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section explains how to configure client connections and authentication for HAWQ:
* <a class="subnav" href="./client_auth.html">Configuring Client Authentication</a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/kerberos.html.md.erb
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+++ b/markdown/clientaccess/kerberos.html.md.erb
@@ -2,6 +2,25 @@
title: Using Kerberos Authentication
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
**Note:** The following steps for enabling Kerberos *are not required* if you install HAWQ using Ambari.
You can control access to HAWQ with a Kerberos authentication server.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/clientaccess/ldap.html.md.erb
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+++ b/markdown/clientaccess/ldap.html.md.erb
@@ -2,6 +2,25 @@
title: Using LDAP Authentication with TLS/SSL
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can control access to HAWQ with an LDAP server and, optionally, secure the connection with encryption by adding parameters to pg\_hba.conf file entries.
HAWQ supports LDAP authentication with the TLS/SSL protocol to encrypt communication with an LDAP server:
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+++ b/markdown/clientaccess/roles_privs.html.md.erb
@@ -2,6 +2,25 @@
title: Managing Roles and Privileges
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The HAWQ authorization mechanism stores roles and permissions to access database objects in the database and is administered using SQL statements or command-line utilities.
HAWQ manages database access permissions using *roles*. The concept of roles subsumes the concepts of *users* and *groups*. A role can be a database user, a group, or both. Roles can own database objects \(for example, tables\) and can assign privileges on those objects to other roles to control access to the objects. Roles can be members of other roles, thus a member role can inherit the object privileges of its parent role.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/BasicDataOperations.html.md.erb
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+++ b/markdown/datamgmt/BasicDataOperations.html.md.erb
@@ -2,6 +2,25 @@
title: Basic Data Operations
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes basic data operations that you perform in HAWQ.
## <a id="topic3"></a>Inserting Rows
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/ConcurrencyControl.html.md.erb
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+++ b/markdown/datamgmt/ConcurrencyControl.html.md.erb
@@ -2,6 +2,25 @@
title: Concurrency Control
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic discusses the mechanisms used in HAWQ to provide concurrency control.
HAWQ and PostgreSQL do not use locks for concurrency control. They maintain data consistency using a multiversion model, Multiversion Concurrency Control (MVCC). MVCC achieves transaction isolation for each database session, and each query transaction sees a snapshot of data. This ensures the transaction sees consistent data that is not affected by other concurrent transactions.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/HAWQInputFormatforMapReduce.html.md.erb
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+++ b/markdown/datamgmt/HAWQInputFormatforMapReduce.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ InputFormat for MapReduce
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
MapReduce is a programming model developed by Google for processing and generating large data sets on an array of commodity servers. You can use the HAWQ InputFormat class to enable MapReduce jobs to access HAWQ data stored in HDFS.
To use HAWQ InputFormat, you need only to provide the URL of the database to connect to, along with the table name you want to access. HAWQ InputFormat fetches only the metadata of the database and table of interest, which is much less data than the table data itself. After getting the metadata, HAWQ InputFormat determines where and how the table data is stored in HDFS. It reads and parses those HDFS files and processes the parsed table tuples directly inside a Map task.
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+++ b/markdown/datamgmt/Transactions.html.md.erb
@@ -2,6 +2,25 @@
title: Working with Transactions
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes transaction support in HAWQ.
Transactions allow you to bundle multiple SQL statements in one all-or-nothing operation.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/about_statistics.html.md.erb
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+++ b/markdown/datamgmt/about_statistics.html.md.erb
@@ -2,6 +2,25 @@
title: About Database Statistics
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
## <a id="overview"></a>Overview
Statistics are metadata that describe the data stored in the database. The query optimizer needs up-to-date statistics to choose the best execution plan for a query. For example, if a query joins two tables and one of them must be broadcast to all segments, the optimizer can choose the smaller of the two tables to minimize network traffic.
[3/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_language.html.md.erb
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+++ b/markdown/reference/catalog/pg_language.html.md.erb
@@ -2,6 +2,25 @@
title: pg_language
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_language` system catalog table registers languages in which you can write functions or stored procedures. It is populated by `CREATE LANGUAGE`.
<a id="topic1__gs143898"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_largeobject.html.md.erb
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+++ b/markdown/reference/catalog/pg_largeobject.html.md.erb
@@ -2,6 +2,25 @@
title: pg_largeobject
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_largeobject` system catalog table holds the data making up 'large objects'. A large object is identified by an OID assigned when it is created. Each large object is broken into segments or 'pages' small enough to be conveniently stored as rows in `pg_largeobject`. The amount of data per page is defined to be `LOBLKSIZE` (which is currently `BLCKSZ`/4, or typically 8K).
Each row of `pg_largeobject` holds data for one page of a large object, beginning at byte offset (*pageno*` * LOBLKSIZE`) within the object. The implementation allows sparse storage: pages may be missing, and may be shorter than `LOBLKSIZE` bytes even if they are not the last page of the object. Missing regions within a large object read as zeroes.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_listener.html.md.erb
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+++ b/markdown/reference/catalog/pg_listener.html.md.erb
@@ -2,6 +2,25 @@
title: pg_listener
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_listener` system catalog table supports the `LISTEN` and `NOTIFY` commands. A listener creates an entry in `pg_listener` for each notification name it is listening for. A notifier scans and updates each matching entry to show that a notification has occurred. The notifier also sends a signal (using the PID recorded in the table) to awaken the listener from sleep.
This table is not currently used in HAWQ.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_locks.html.md.erb
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+++ b/markdown/reference/catalog/pg_locks.html.md.erb
@@ -2,6 +2,25 @@
title: pg_locks
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_locks` view provides access to information about the locks held by open transactions within HAWQ.
`pg_locks` contains one row per active lockable object, requested lock mode, and relevant transaction. Thus, the same lockable object may appear many times, if multiple transactions are holding or waiting for locks on it. However, an object that currently has no locks on it will not appear at all.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_namespace.html.md.erb
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+++ b/markdown/reference/catalog/pg_namespace.html.md.erb
@@ -2,6 +2,25 @@
title: pg_namespace
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_namespace` system catalog table stores namespaces. A namespace is the structure underlying SQL schemas: each namespace can have a separate collection of relations, types, etc. without name conflicts.
<a id="topic1__gx143898"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_opclass.html.md.erb
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+++ b/markdown/reference/catalog/pg_opclass.html.md.erb
@@ -2,6 +2,25 @@
title: pg_opclass
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_opclass` system catalog table defines index access method operator classes. Each operator class defines semantics for index columns of a particular data type and a particular index access method. Note that there can be multiple operator classes for a given data type/access method combination, thus supporting multiple behaviors. The majority of the information defining an operator class is actually not in its `pg_opclass` row, but in the associated rows in [pg\_amop](pg_amop.html#topic1) and [pg\_amproc](pg_amproc.html#topic1). Those rows are considered to be part of the operator class definition \u2014 this is not unlike the way that a relation is defined by a single [pg\_class](pg_class.html#topic1) row plus associated rows in [pg\_attribute](pg_attribute.html#topic1) and other tables.
<a id="topic1__gw141982"></a>
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@@ -2,6 +2,25 @@
title: pg_operator
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_operator` system catalog table stores information about operators, both built-in and those defined by `CREATE OPERATOR`. Unused column contain zeroes. For example, `oprleft` is zero for a prefix operator.
<a id="topic1__gy150092"></a>
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@@ -2,6 +2,25 @@
title: pg_partition
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partition` system catalog table is used to track partitioned tables and their inheritance level relationships. Each row of `pg_partition` represents either the level of a partitioned table in the partition hierarchy, or a subpartition template description. The value of the attribute `paristemplate` determines what a particular row represents.
<a id="topic1__gz143898"></a>
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+++ b/markdown/reference/catalog/pg_partition_columns.html.md.erb
@@ -2,6 +2,25 @@
title: pg_partition_columns
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partition_columns` system view is used to show the partition key columns of a partitioned table.
<a id="topic1__ha179967"></a>
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+++ b/markdown/reference/catalog/pg_partition_encoding.html.md.erb
@@ -2,6 +2,25 @@
title: pg_partition_encoding
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partition_encoding` system catalog table describes the available column compression options for a partition template.
<a id="topic1__hb177831"></a>
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+++ b/markdown/reference/catalog/pg_partition_rule.html.md.erb
@@ -2,6 +2,25 @@
title: pg_partition_rule
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partition_rule` system catalog table is used to track partitioned tables, their check constraints, and data containment rules. Each row of `pg_partition_rule` represents either a leaf partition (the bottom level partitions that contain data), or a branch partition (a top or mid-level partition that is used to define the partition hierarchy, but does not contain any data).
<a id="topic1__hc179425"></a>
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+++ b/markdown/reference/catalog/pg_partition_templates.html.md.erb
@@ -2,6 +2,25 @@
title: pg_partition_templates
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partition_templates` system view is used to show the subpartitions that were created using a subpartition template.
<a id="topic1__hd179967"></a>
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+++ b/markdown/reference/catalog/pg_partitions.html.md.erb
@@ -2,6 +2,25 @@
title: pg_partitions
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_partitions` system view is used to show the structure of a partitioned table.
<a id="topic1__he143898"></a>
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+++ b/markdown/reference/catalog/pg_pltemplate.html.md.erb
@@ -2,6 +2,25 @@
title: pg_pltemplate
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_pltemplate` system catalog table stores template information for procedural languages. A template for a language allows the language to be created in a particular database by a simple `CREATE LANGUAGE` command, with no need to specify implementation details. Unlike most system catalogs, `pg_pltemplate` is shared across all databases of HAWQ system: there is only one copy of `pg_pltemplate` per system, not one per database. This allows the information to be accessible in each database as it is needed.
There are not currently any commands that manipulate procedural language templates; to change the built-in information, a superuser must modify the table using ordinary `INSERT`, `DELETE`, or `UPDATE` commands.
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+++ b/markdown/reference/catalog/pg_proc.html.md.erb
@@ -2,6 +2,25 @@
title: pg_proc
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_proc` system catalog table stores information about functions (or procedures), both built-in functions and those defined by `CREATE FUNCTION`. The table contains data for aggregate and window functions as well as plain functions. If `proisagg` is true, there should be a matching row in `pg_aggregate`. If `proiswin` is true, there should be a matching row in `pg_window`.
For compiled functions, both built-in and dynamically loaded, `prosrc` contains the function's C-language name (link symbol). For all other currently-known language types, `prosrc` contains the function's source text. `probin` is unused except for dynamically-loaded C functions, for which it gives the name of the shared library file containing the function.
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+++ b/markdown/reference/catalog/pg_resqueue.html.md.erb
@@ -2,6 +2,25 @@
title: pg_resqueue
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_resqueue` system catalog table contains information about HAWQ resource queues, which are used for managing resources. This table is populated only on the master. This table is defined in the `pg_global` tablespace, meaning it is globally shared across all databases in the system.
<a id="topic1__hi141982"></a>
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+++ b/markdown/reference/catalog/pg_resqueue_status.html.md.erb
@@ -2,6 +2,25 @@
title: pg_resqueue_status
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_resqueue_status` view allows administrators to see status and activity for a workload management resource queue. It shows how many queries are waiting to run and how many queries are currently active in the system from a particular resource queue.
<a id="topic1__fp141982"></a>
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+++ b/markdown/reference/catalog/pg_rewrite.html.md.erb
@@ -2,6 +2,25 @@
title: pg_rewrite
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_rewrite` system catalog table stores rewrite rules for tables and views. `pg_class.relhasrules` must be true if a table has any rules in this catalog.
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+++ b/markdown/reference/catalog/pg_roles.html.md.erb
@@ -2,6 +2,25 @@
title: pg_roles
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The view `pg_roles` provides access to information about database roles. This is simply a publicly readable view of [pg\_authid](pg_authid.html#topic1) that blanks out the password field. This view explicitly exposes the OID column of the underlying table, since that is needed to do joins to other catalogs.
<a id="topic1__hn141982"></a>
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+++ b/markdown/reference/catalog/pg_shdepend.html.md.erb
@@ -2,6 +2,25 @@
title: pg_shdepend
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_shdepend` system catalog table records the dependency relationships between database objects and shared objects, such as roles. This information allows HAWQ to ensure that those objects are unreferenced before attempting to delete them. See also [pg\_depend](pg_depend.html#topic1), which performs a similar function for dependencies involving objects within a single database. Unlike most system catalogs, `pg_shdepend` is shared across all databases of HAWQ system: there is only one copy of `pg_shdepend` per system, not one per database.
In all cases, a `pg_shdepend` entry indicates that the referenced object may not be dropped without also dropping the dependent object. However, there are several subflavors identified by `deptype`:
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+++ b/markdown/reference/catalog/pg_shdescription.html.md.erb
@@ -2,6 +2,25 @@
title: pg_shdescription
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_shdescription` system catalog table stores optional descriptions (comments) for shared database objects. Descriptions can be manipulated with the `COMMENT` command and viewed with `psql`'s `\d` meta-commands. See also [pg\_description](pg_description.html#topic1), which performs a similar function for descriptions involving objects within a single database. Unlike most system catalogs, `pg_shdescription` is shared across all databases of a HAWQ system: there is only one copy of `pg_shdescription` per system, not one per database.
<a id="topic1__hp143898"></a>
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+++ b/markdown/reference/catalog/pg_stat_activity.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stat_activity
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The view `pg_stat_activity` shows one row per server process and details about it associated user session and query. The columns that report data on the current query are available unless the parameter `stats_command_string` has been turned off. Furthermore, these columns are only visible if the user examining the view is a superuser or the same as the user owning the process being reported on.
<a id="topic1__hq141982"></a>
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+++ b/markdown/reference/catalog/pg_stat_last_operation.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stat_last_operation
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_stat_last_operation` table contains metadata tracking information about database objects (tables, views, etc.).
<a id="topic1__hr138428"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_stat_last_shoperation.html.md.erb
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diff --git a/markdown/reference/catalog/pg_stat_last_shoperation.html.md.erb b/markdown/reference/catalog/pg_stat_last_shoperation.html.md.erb
index 0dc5a03..599d83c 100644
--- a/markdown/reference/catalog/pg_stat_last_shoperation.html.md.erb
+++ b/markdown/reference/catalog/pg_stat_last_shoperation.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stat_last_shoperation
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_stat_last_shoperation` table contains metadata tracking information about global objects (roles, tablespaces, etc.).
<a id="topic1__hs138428"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_stat_operations.html.md.erb
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diff --git a/markdown/reference/catalog/pg_stat_operations.html.md.erb b/markdown/reference/catalog/pg_stat_operations.html.md.erb
index 65833f8..3f585f4 100644
--- a/markdown/reference/catalog/pg_stat_operations.html.md.erb
+++ b/markdown/reference/catalog/pg_stat_operations.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stat_operations
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The view `pg_stat_operations` shows details about the last operation performed on a database object (such as a table, index, view or database) or a global object (such as a role).
<a id="topic1__ht141982"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_stat_partition_operations.html.md.erb
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diff --git a/markdown/reference/catalog/pg_stat_partition_operations.html.md.erb b/markdown/reference/catalog/pg_stat_partition_operations.html.md.erb
index 2d2fb17..8bde95e 100644
--- a/markdown/reference/catalog/pg_stat_partition_operations.html.md.erb
+++ b/markdown/reference/catalog/pg_stat_partition_operations.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stat_partition_operations
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_stat_partition_operations` view shows details about the last operation performed on a partitioned table.
<a id="topic1__hu141982"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_statistic.html.md.erb
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diff --git a/markdown/reference/catalog/pg_statistic.html.md.erb b/markdown/reference/catalog/pg_statistic.html.md.erb
index b784da1..3dc7c33 100644
--- a/markdown/reference/catalog/pg_statistic.html.md.erb
+++ b/markdown/reference/catalog/pg_statistic.html.md.erb
@@ -2,6 +2,25 @@
title: pg_statistic
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_statistic` system catalog table stores statistical data about the contents of the database. Entries are created by `ANALYZE` and subsequently used by the query optimizer. There is one entry for each table column that has been analyzed. Note that all the statistical data is inherently approximate, even assuming that it is up-to-date.
`pg_statistic` also stores statistical data about the values of index expressions. These are described as if they were actual data columns; in particular, `starelid` references the index. No entry is made for an ordinary non-expression index column, however, since it would be redundant with the entry for the underlying table column.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_stats.html.md.erb
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diff --git a/markdown/reference/catalog/pg_stats.html.md.erb b/markdown/reference/catalog/pg_stats.html.md.erb
index f7cb0f4..555dea0 100644
--- a/markdown/reference/catalog/pg_stats.html.md.erb
+++ b/markdown/reference/catalog/pg_stats.html.md.erb
@@ -2,6 +2,25 @@
title: pg_stats
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_stats` is a publicly readable view on `pg_statistic` that only exposes information about those tables that are readable by the current user. The `pg_stats` view presents the contents of `pg_statistic` in a friendlier format.
All the statistical data is inherently approximate, even assuming that it is up-to-date. The `pg_stats` schema must be extended whenever new slot types are defined.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_tablespace.html.md.erb
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diff --git a/markdown/reference/catalog/pg_tablespace.html.md.erb b/markdown/reference/catalog/pg_tablespace.html.md.erb
index 493c6b0..0683a44 100644
--- a/markdown/reference/catalog/pg_tablespace.html.md.erb
+++ b/markdown/reference/catalog/pg_tablespace.html.md.erb
@@ -2,6 +2,25 @@
title: pg_tablespace
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_tablespace` system catalog table stores information about the available tablespaces. Tables can be placed in particular tablespaces to aid administration of disk layout. Unlike most system catalogs, `pg_tablespace` is shared across all databases of a HAWQ system: there is only one copy of `pg_tablespace` per system, not one per database.
<a id="topic1__hx156260"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_trigger.html.md.erb
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diff --git a/markdown/reference/catalog/pg_trigger.html.md.erb b/markdown/reference/catalog/pg_trigger.html.md.erb
index 3074e46..8e0fc87 100644
--- a/markdown/reference/catalog/pg_trigger.html.md.erb
+++ b/markdown/reference/catalog/pg_trigger.html.md.erb
@@ -2,6 +2,25 @@
title: pg_trigger
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_trigger` system catalog table stores triggers on tables.
**Note:** HAWQ does not support triggers.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_type.html.md.erb
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diff --git a/markdown/reference/catalog/pg_type.html.md.erb b/markdown/reference/catalog/pg_type.html.md.erb
index e2ea28a..7c8a9c1 100644
--- a/markdown/reference/catalog/pg_type.html.md.erb
+++ b/markdown/reference/catalog/pg_type.html.md.erb
@@ -2,6 +2,25 @@
title: pg_type
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_type` system catalog table stores information about data types. Base types (scalar types) are created with `CREATE TYPE`, and domains with `CREATE DOMAIN`. A composite type is automatically created for each table in the database, to represent the row structure of the table. It is also possible to create composite types with `CREATE TYPE AS`.
<a id="topic1__hz156260"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_type_encoding.html.md.erb
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diff --git a/markdown/reference/catalog/pg_type_encoding.html.md.erb b/markdown/reference/catalog/pg_type_encoding.html.md.erb
index b38ff10..0c2c237 100644
--- a/markdown/reference/catalog/pg_type_encoding.html.md.erb
+++ b/markdown/reference/catalog/pg_type_encoding.html.md.erb
@@ -2,6 +2,25 @@
title: pg_type_encoding
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_type_encoding` system catalog table contains the column storage type information.
<a id="topic1__ia177831"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_window.html.md.erb
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diff --git a/markdown/reference/catalog/pg_window.html.md.erb b/markdown/reference/catalog/pg_window.html.md.erb
index afe4c0d..b61b566 100644
--- a/markdown/reference/catalog/pg_window.html.md.erb
+++ b/markdown/reference/catalog/pg_window.html.md.erb
@@ -2,6 +2,25 @@
title: pg_window
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_window` table stores information about window functions. Window functions are often used to compose complex OLAP (online analytical processing) queries. Window functions are applied to partitioned result sets within the scope of a single query expression. A window partition is a subset of rows returned by a query, as defined in a special `OVER()` clause. Typical window functions are `rank`, `dense_rank`, and `row_number`. Each entry in `pg_window` is an extension of an entry in [pg\_proc](pg_proc.html#topic1). The [pg\_proc](pg_proc.html#topic1) entry carries the window function's name, input and output data types, and other information that is similar to ordinary functions.
<a id="topic1__ic143898"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/analyzedb.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/analyzedb.html.md.erb b/markdown/reference/cli/admin_utilities/analyzedb.html.md.erb
index 0384c34..72e7425 100644
--- a/markdown/reference/cli/admin_utilities/analyzedb.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/analyzedb.html.md.erb
@@ -2,6 +2,25 @@
title: analyzedb
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A utility that performs `ANALYZE` operations on tables incrementally and concurrently.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/gpfdist.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/gpfdist.html.md.erb b/markdown/reference/cli/admin_utilities/gpfdist.html.md.erb
index 1683ddb..2520aee 100644
--- a/markdown/reference/cli/admin_utilities/gpfdist.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/gpfdist.html.md.erb
@@ -2,6 +2,25 @@
title: gpfdist
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Serves data files to or writes data files out from HAWQ segments.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/gplogfilter.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/gplogfilter.html.md.erb b/markdown/reference/cli/admin_utilities/gplogfilter.html.md.erb
index 44e73c5..d741a9f 100644
--- a/markdown/reference/cli/admin_utilities/gplogfilter.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/gplogfilter.html.md.erb
@@ -2,6 +2,25 @@
title: gplogfilter
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Searches through HAWQ log files for specified entries.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqactivate.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/hawqactivate.html.md.erb b/markdown/reference/cli/admin_utilities/hawqactivate.html.md.erb
index 7afd6c7..6bbcdd4 100644
--- a/markdown/reference/cli/admin_utilities/hawqactivate.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqactivate.html.md.erb
@@ -2,6 +2,25 @@
title: hawq activate
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Activates a standby master host and makes it the active master for the HAWQ system.
**Note:** If HAWQ was installed using Ambari, do not use `hawq activate` to activate a standby master host. The system catalogs could become unsynchronized if you mix Ambari and command line functions. For Ambari-managed HAWQ clusters, always use the Ambari administration interface to activate a standby master. For more information, see [Manging HAWQ Using Ambari](../../../admin/ambari-admin.html#topic1).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqcheck.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/hawqcheck.html.md.erb b/markdown/reference/cli/admin_utilities/hawqcheck.html.md.erb
index 23a496d..a36eb1e 100644
--- a/markdown/reference/cli/admin_utilities/hawqcheck.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqcheck.html.md.erb
@@ -2,6 +2,25 @@
title: hawq check
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Verifies and validates HAWQ platform settings.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqcheckperf.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/hawqcheckperf.html.md.erb b/markdown/reference/cli/admin_utilities/hawqcheckperf.html.md.erb
index f5c7e2c..984ff16 100644
--- a/markdown/reference/cli/admin_utilities/hawqcheckperf.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqcheckperf.html.md.erb
@@ -2,6 +2,25 @@
title: hawq checkperf
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Verifies the baseline hardware performance of the specified hosts.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqconfig.html.md.erb
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diff --git a/markdown/reference/cli/admin_utilities/hawqconfig.html.md.erb b/markdown/reference/cli/admin_utilities/hawqconfig.html.md.erb
index 9f5e840..b99439a 100644
--- a/markdown/reference/cli/admin_utilities/hawqconfig.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqconfig.html.md.erb
@@ -2,6 +2,25 @@
title: hawq config
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Sets server configuration parameters on all nodes (master and segments) for HAWQ systems that are managed using command-line utilities.
**Note:** If you install and manage HAWQ using Ambari, do not use `hawq config` to configure HAWQ properties. Ambari will overwrite any changes that were made by `hawq config` when it restarts the cluster. For Ambari-managed HAWQ clusters, always use the Ambari administration interface to set or change HAWQ configuration properties.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqextract.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqextract.html.md.erb b/markdown/reference/cli/admin_utilities/hawqextract.html.md.erb
index b338523..45355e9 100644
--- a/markdown/reference/cli/admin_utilities/hawqextract.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqextract.html.md.erb
@@ -2,6 +2,25 @@
title: hawq extract
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Extracts the metadata of a specified table into a YAML file.
## Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqfilespace.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqfilespace.html.md.erb b/markdown/reference/cli/admin_utilities/hawqfilespace.html.md.erb
index eeb7b39..10cd022 100644
--- a/markdown/reference/cli/admin_utilities/hawqfilespace.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqfilespace.html.md.erb
@@ -2,6 +2,25 @@
title: hawq filespace
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Creates a filespace using a configuration file that defines a file system location. Filespaces describe the physical file system resources to be used by a tablespace.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqinit.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqinit.html.md.erb b/markdown/reference/cli/admin_utilities/hawqinit.html.md.erb
index de45ef3..7fdf36b 100644
--- a/markdown/reference/cli/admin_utilities/hawqinit.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqinit.html.md.erb
@@ -2,6 +2,25 @@
title: hawq init
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `hawq init cluster` command initializes a HAWQ system and starts it.
Use the `hawq init master` and `hawq init segment` commands to individually initialize the master or segment nodes, respectively. Specify any format options at this time. The `hawq init standby` command initializes a standby master host for a HAWQ system.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqload.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqload.html.md.erb b/markdown/reference/cli/admin_utilities/hawqload.html.md.erb
index b9fe441..45aa182 100644
--- a/markdown/reference/cli/admin_utilities/hawqload.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqload.html.md.erb
@@ -2,6 +2,25 @@
title: hawq load
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Acts as an interface to the external table parallel loading feature. Executes a load specification defined in a YAML-formatted control file to invoke the HAWQ parallel file server (`gpfdist`).
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqregister.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqregister.html.md.erb b/markdown/reference/cli/admin_utilities/hawqregister.html.md.erb
index c230d6d..a89d2e9 100644
--- a/markdown/reference/cli/admin_utilities/hawqregister.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqregister.html.md.erb
@@ -2,6 +2,25 @@
title: hawq register
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Loads and registers AO or Parquet-formatted tables in HDFS into a corresponding table in HAWQ.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqrestart.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqrestart.html.md.erb b/markdown/reference/cli/admin_utilities/hawqrestart.html.md.erb
index 6d80e90..0560d74 100644
--- a/markdown/reference/cli/admin_utilities/hawqrestart.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqrestart.html.md.erb
@@ -2,6 +2,25 @@
title: hawq restart
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Shuts down and then restarts a HAWQ system after shutdown is complete.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqscp.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqscp.html.md.erb b/markdown/reference/cli/admin_utilities/hawqscp.html.md.erb
index 77f64a8..8b64cfe 100644
--- a/markdown/reference/cli/admin_utilities/hawqscp.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqscp.html.md.erb
@@ -2,6 +2,25 @@
title: hawq scp
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Copies files between multiple hosts at once.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqssh-exkeys.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqssh-exkeys.html.md.erb b/markdown/reference/cli/admin_utilities/hawqssh-exkeys.html.md.erb
index 2567faf..cf06e31 100644
--- a/markdown/reference/cli/admin_utilities/hawqssh-exkeys.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqssh-exkeys.html.md.erb
@@ -2,6 +2,25 @@
title: hawq ssh-exkeys
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Exchanges SSH public keys between hosts.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqssh.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqssh.html.md.erb b/markdown/reference/cli/admin_utilities/hawqssh.html.md.erb
index ee31308..fdaa760 100644
--- a/markdown/reference/cli/admin_utilities/hawqssh.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqssh.html.md.erb
@@ -2,6 +2,25 @@
title: hawq ssh
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Provides SSH access to multiple hosts at once.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqstart.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqstart.html.md.erb b/markdown/reference/cli/admin_utilities/hawqstart.html.md.erb
index ff7b427..6944dcc 100644
--- a/markdown/reference/cli/admin_utilities/hawqstart.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqstart.html.md.erb
@@ -2,6 +2,25 @@
title: hawq start
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Starts a HAWQ system.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqstate.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqstate.html.md.erb b/markdown/reference/cli/admin_utilities/hawqstate.html.md.erb
index 3927442..e56ecd1 100644
--- a/markdown/reference/cli/admin_utilities/hawqstate.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqstate.html.md.erb
@@ -2,6 +2,25 @@
title: hawq state
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Shows the status of a running HAWQ system.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/admin_utilities/hawqstop.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/admin_utilities/hawqstop.html.md.erb b/markdown/reference/cli/admin_utilities/hawqstop.html.md.erb
index dd54156..3e30a27 100644
--- a/markdown/reference/cli/admin_utilities/hawqstop.html.md.erb
+++ b/markdown/reference/cli/admin_utilities/hawqstop.html.md.erb
@@ -2,6 +2,25 @@
title: hawq stop
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Stops or restarts a HAWQ system.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/createdb.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/client_utilities/createdb.html.md.erb b/markdown/reference/cli/client_utilities/createdb.html.md.erb
index 31b0c80..2970d3d 100644
--- a/markdown/reference/cli/client_utilities/createdb.html.md.erb
+++ b/markdown/reference/cli/client_utilities/createdb.html.md.erb
@@ -2,6 +2,25 @@
title: createdb
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Creates a new database.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/createuser.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/client_utilities/createuser.html.md.erb b/markdown/reference/cli/client_utilities/createuser.html.md.erb
index 15c189b..838ab37 100644
--- a/markdown/reference/cli/client_utilities/createuser.html.md.erb
+++ b/markdown/reference/cli/client_utilities/createuser.html.md.erb
@@ -2,6 +2,25 @@
title: createuser
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Creates a new database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/dropdb.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/client_utilities/dropdb.html.md.erb b/markdown/reference/cli/client_utilities/dropdb.html.md.erb
index 13df828..0b731f7 100644
--- a/markdown/reference/cli/client_utilities/dropdb.html.md.erb
+++ b/markdown/reference/cli/client_utilities/dropdb.html.md.erb
@@ -2,6 +2,25 @@
title: dropdb
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/dropuser.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/cli/client_utilities/dropuser.html.md.erb b/markdown/reference/cli/client_utilities/dropuser.html.md.erb
index 9d888ae..27da912 100644
--- a/markdown/reference/cli/client_utilities/dropuser.html.md.erb
+++ b/markdown/reference/cli/client_utilities/dropuser.html.md.erb
@@ -2,6 +2,25 @@
title: dropuser
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database role.
## <a id="topic1__section2"></a>Synopsis
[4/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-features.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/query/gporca/query-gporca-features.html.md.erb b/markdown/query/gporca/query-gporca-features.html.md.erb
index 4941866..6693425 100644
--- a/markdown/query/gporca/query-gporca-features.html.md.erb
+++ b/markdown/query/gporca/query-gporca-features.html.md.erb
@@ -2,6 +2,25 @@
title: GPORCA Features and Enhancements
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
GPORCA includes enhancements for specific types of queries and operations. GPORCA also includes these optimization enhancements:
- Improved join ordering
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-limitations.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/query/gporca/query-gporca-limitations.html.md.erb b/markdown/query/gporca/query-gporca-limitations.html.md.erb
index b63f0d2..2e7aa6d 100644
--- a/markdown/query/gporca/query-gporca-limitations.html.md.erb
+++ b/markdown/query/gporca/query-gporca-limitations.html.md.erb
@@ -2,6 +2,25 @@
title: GPORCA Limitations
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">There are limitations in HAWQ when GPORCA is enabled. GPORCA and the legacy query optimizer currently coexist in HAWQ because GPORCA does not support all HAWQ features. </span>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-notes.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-notes.html.md.erb b/markdown/query/gporca/query-gporca-notes.html.md.erb
index ed943e4..3747c80 100644
--- a/markdown/query/gporca/query-gporca-notes.html.md.erb
+++ b/markdown/query/gporca/query-gporca-notes.html.md.erb
@@ -2,6 +2,25 @@
title: Considerations when Using GPORCA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc"> To execute queries optimally with GPORCA, consider certain criteria for the query. </span>
Ensure the following criteria are met:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-optimizer.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-optimizer.html.md.erb b/markdown/query/gporca/query-gporca-optimizer.html.md.erb
index 11814f8..b297b96 100644
--- a/markdown/query/gporca/query-gporca-optimizer.html.md.erb
+++ b/markdown/query/gporca/query-gporca-optimizer.html.md.erb
@@ -2,6 +2,25 @@
title: About GPORCA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
In HAWQ, you can use GPORCA or the legacy query optimizer.
**Note:** To use the GPORCA query optimizer, you must be running a version of HAWQ built with GPORCA, and GPORCA must be enabled in your HAWQ deployment.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-overview.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-overview.html.md.erb b/markdown/query/gporca/query-gporca-overview.html.md.erb
index 56f97eb..c18b4c2 100644
--- a/markdown/query/gporca/query-gporca-overview.html.md.erb
+++ b/markdown/query/gporca/query-gporca-overview.html.md.erb
@@ -2,6 +2,25 @@
title: Overview of GPORCA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">GPORCA extends the planning and optimization capabilities of the HAWQ legacy optimizer. </span> GPORCA is extensible and achieves better optimization in multi-core architecture environments. When GPORCA is available in your HAWQ installation and enabled, HAWQ uses GPORCA to generate an execution plan for a query when possible.
GPORCA also enhances HAWQ query performance tuning in the following areas:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/query-performance.html.md.erb
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diff --git a/markdown/query/query-performance.html.md.erb b/markdown/query/query-performance.html.md.erb
index 981d77b..045a978 100644
--- a/markdown/query/query-performance.html.md.erb
+++ b/markdown/query/query-performance.html.md.erb
@@ -2,6 +2,25 @@
title: Query Performance
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">HAWQ dynamically allocates resources to queries. Query performance depends on several factors such as data locality, number of virtual segments used for the query and general cluster health.</span>
- Dynamic Partition Elimination
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/query-profiling.html.md.erb
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diff --git a/markdown/query/query-profiling.html.md.erb b/markdown/query/query-profiling.html.md.erb
index ea20e0a..fccef18 100644
--- a/markdown/query/query-profiling.html.md.erb
+++ b/markdown/query/query-profiling.html.md.erb
@@ -2,6 +2,25 @@
title: Query Profiling
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">Examine the query plans of poorly performing queries to identify possible performance tuning opportunities.</span>
HAWQ devises a *query plan* for each query. Choosing the right query plan to match the query and data structure is necessary for good performance. A query plan defines how HAWQ will run the query in the parallel execution environment.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/query.html.md.erb
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diff --git a/markdown/query/query.html.md.erb b/markdown/query/query.html.md.erb
index 9c218c7..7df1a14 100644
--- a/markdown/query/query.html.md.erb
+++ b/markdown/query/query.html.md.erb
@@ -2,6 +2,25 @@
title: Querying Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides information about using SQL in HAWQ databases.
You enter SQL statements called queries to view and analyze data in a database using the `psql` interactive SQL client and other client tools.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/CharacterSetSupportReference.html.md.erb
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diff --git a/markdown/reference/CharacterSetSupportReference.html.md.erb b/markdown/reference/CharacterSetSupportReference.html.md.erb
index 8a12471..d978ecf 100644
--- a/markdown/reference/CharacterSetSupportReference.html.md.erb
+++ b/markdown/reference/CharacterSetSupportReference.html.md.erb
@@ -2,6 +2,25 @@
title: Character Set Support Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides a referene of the character sets supported in HAWQ.
The character set support in HAWQ allows you to store text in a variety of character sets, including single-byte character sets such as the ISO 8859 series and multiple-byte character sets such as EUC (Extended Unix Code), UTF-8, and Mule internal code. All supported character sets can be used transparently by clients, but a few are not supported for use within the server (that is, as a server-side encoding). The default character set is selected while initializing your HAWQ using `hawq init.` It can be overridden when you create a database, so you can have multiple databases each with a different character set.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/HAWQDataTypes.html.md.erb
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diff --git a/markdown/reference/HAWQDataTypes.html.md.erb b/markdown/reference/HAWQDataTypes.html.md.erb
index fe5cff7..fe31458 100644
--- a/markdown/reference/HAWQDataTypes.html.md.erb
+++ b/markdown/reference/HAWQDataTypes.html.md.erb
@@ -2,6 +2,25 @@
title: Data Types
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides a reference of the data types supported in HAWQ.
HAWQ has a rich set of native data types available to users. Users may also define new data types using the `CREATE TYPE` command. This reference shows all of the built-in data types. In addition to the types listed here, there are also some internally�used data types, such as **oid**�(object identifier), but those are not documented in this guide.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/HAWQEnvironmentVariables.html.md.erb
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diff --git a/markdown/reference/HAWQEnvironmentVariables.html.md.erb b/markdown/reference/HAWQEnvironmentVariables.html.md.erb
index ce21798..2cf10ea 100644
--- a/markdown/reference/HAWQEnvironmentVariables.html.md.erb
+++ b/markdown/reference/HAWQEnvironmentVariables.html.md.erb
@@ -2,6 +2,25 @@
title: Environment Variables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic contains a reference of the environment variables that you set for HAWQ.
Set these in your user\u2019s startup shell profile (such as `~/.bashrc` or `~/.bash_profile`), or in `/etc/profile`, if you want to set them for all users.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/HAWQSampleSiteConfig.html.md.erb
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diff --git a/markdown/reference/HAWQSampleSiteConfig.html.md.erb b/markdown/reference/HAWQSampleSiteConfig.html.md.erb
index d4cae5a..1161087 100644
--- a/markdown/reference/HAWQSampleSiteConfig.html.md.erb
+++ b/markdown/reference/HAWQSampleSiteConfig.html.md.erb
@@ -2,6 +2,25 @@
title: Sample hawq-site.xml Configuration File
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
```xml
<configuration>
<property>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/HAWQSiteConfig.html.md.erb
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diff --git a/markdown/reference/HAWQSiteConfig.html.md.erb b/markdown/reference/HAWQSiteConfig.html.md.erb
index 3d20297..578a883 100644
--- a/markdown/reference/HAWQSiteConfig.html.md.erb
+++ b/markdown/reference/HAWQSiteConfig.html.md.erb
@@ -2,6 +2,25 @@
title: Server Configuration Parameter Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section describes all server configuration guc/parameters that are available in HAWQ.
Configuration guc/parameters are located in `$GPHOME/etc/hawq-site.xml`. This configuration file resides on all HAWQ instances and is managed either by Ambari or by using the `hawq config` utility. On HAWQ clusters installed and managed by Ambari, always use the Ambari administration interface, and not `hawq config`, to configure HAWQ properties. Ambari will overwrite any changes made using `hawq config`.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/HDFSConfigurationParameterReference.html.md.erb
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diff --git a/markdown/reference/HDFSConfigurationParameterReference.html.md.erb b/markdown/reference/HDFSConfigurationParameterReference.html.md.erb
index aef4ed2..28b863a 100644
--- a/markdown/reference/HDFSConfigurationParameterReference.html.md.erb
+++ b/markdown/reference/HDFSConfigurationParameterReference.html.md.erb
@@ -2,6 +2,25 @@
title: HDFS Configuration Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This reference page describes HDFS configuration values that are configured for HAWQ either within `hdfs-site.xml`, `core-site.xml`, or `hdfs-client.xml`.
## <a id="topic_ixj_xw1_1w"></a>HDFS Site Configuration (hdfs-site.xml and core-site.xml)
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/SQLCommandReference.html.md.erb
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diff --git a/markdown/reference/SQLCommandReference.html.md.erb b/markdown/reference/SQLCommandReference.html.md.erb
index 7bbe625..44938ee 100644
--- a/markdown/reference/SQLCommandReference.html.md.erb
+++ b/markdown/reference/SQLCommandReference.html.md.erb
@@ -2,6 +2,25 @@
title: SQL Commands
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This�section contains a description and the syntax�of�the SQL commands supported by HAWQ.
- **[ABORT](../reference/sql/ABORT.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/catalog_ref-html.html.md.erb
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diff --git a/markdown/reference/catalog/catalog_ref-html.html.md.erb b/markdown/reference/catalog/catalog_ref-html.html.md.erb
index 864f106..bf73d47 100644
--- a/markdown/reference/catalog/catalog_ref-html.html.md.erb
+++ b/markdown/reference/catalog/catalog_ref-html.html.md.erb
@@ -2,6 +2,25 @@
title: System Catalogs Definitions
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
System catalog table and view definitions in alphabetical order.
- **[gp\_configuration\_history](../../reference/catalog/gp_configuration_history.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/catalog_ref-tables.html.md.erb
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diff --git a/markdown/reference/catalog/catalog_ref-tables.html.md.erb b/markdown/reference/catalog/catalog_ref-tables.html.md.erb
index 61aa936..4e1c745 100644
--- a/markdown/reference/catalog/catalog_ref-tables.html.md.erb
+++ b/markdown/reference/catalog/catalog_ref-tables.html.md.erb
@@ -2,6 +2,25 @@
title: System Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic lists the system tables included in HAWQ.
- gp\_configuration (Deprecated. See [gp\_segment\_configuration](gp_segment_configuration.html#topic1).)
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/catalog_ref-views.html.md.erb
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diff --git a/markdown/reference/catalog/catalog_ref-views.html.md.erb b/markdown/reference/catalog/catalog_ref-views.html.md.erb
index 4a7ad74..94b1c39 100644
--- a/markdown/reference/catalog/catalog_ref-views.html.md.erb
+++ b/markdown/reference/catalog/catalog_ref-views.html.md.erb
@@ -2,6 +2,25 @@
title: System Views
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ provides the following system views not available in PostgreSQL.
- pg\_max\_external\_files (shows number of external table files allowed per segment host when using the file:// protocol)
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/catalog_ref.html.md.erb
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diff --git a/markdown/reference/catalog/catalog_ref.html.md.erb b/markdown/reference/catalog/catalog_ref.html.md.erb
index 143091f..142e3c3 100644
--- a/markdown/reference/catalog/catalog_ref.html.md.erb
+++ b/markdown/reference/catalog/catalog_ref.html.md.erb
@@ -2,6 +2,25 @@
title: System Catalog Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This reference describes the HAWQ system catalog tables and views.
System tables prefixed with '`gp_`' relate to the parallel features of HAWQ. Tables prefixed with '`pg_`' are either standard PostgreSQL system catalog tables supported in HAWQ, or are related to features HAWQ that provides to enhance PostgreSQL for data warehousing workloads. Note that the global system catalog for HAWQ resides on the master instance.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/gp_configuration_history.html.md.erb
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diff --git a/markdown/reference/catalog/gp_configuration_history.html.md.erb b/markdown/reference/catalog/gp_configuration_history.html.md.erb
index e501d55..d89b0e2 100644
--- a/markdown/reference/catalog/gp_configuration_history.html.md.erb
+++ b/markdown/reference/catalog/gp_configuration_history.html.md.erb
@@ -2,6 +2,25 @@
title: gp_configuration_history
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_configuration_history` table contains information about system changes related to fault detection and recovery operations. The HAWQ [fault tolerance service](../../admin/FaultTolerance.html) logs data to this table, as do certain related management utilities such as `hawq init`. For example, when you add a new segment to the system, records for these events are logged to `gp_configuration_history`. If a segment is marked as down by the fault tolerance service in the [gp\_segment\_configuration](gp_segment_configuration.html) catalog table, then the reason for being marked as down is recorded in this table.
The event descriptions stored in this table may be helpful for troubleshooting serious system issues in collaboration with HAWQ support technicians.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/gp_distribution_policy.html.md.erb
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diff --git a/markdown/reference/catalog/gp_distribution_policy.html.md.erb b/markdown/reference/catalog/gp_distribution_policy.html.md.erb
index 6b227e6..4b205f1 100644
--- a/markdown/reference/catalog/gp_distribution_policy.html.md.erb
+++ b/markdown/reference/catalog/gp_distribution_policy.html.md.erb
@@ -2,6 +2,25 @@
title: gp_distribution_policy
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_distribution_policy` table contains information about HAWQ tables and their policy for distributing table data across the segments. This table is populated only on the master. This table is not globally shared, meaning each database has its own copy of this table.
<a id="topic1__ey142842"></a>
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diff --git a/markdown/reference/catalog/gp_global_sequence.html.md.erb b/markdown/reference/catalog/gp_global_sequence.html.md.erb
index ac2ff2f..7774e09 100644
--- a/markdown/reference/catalog/gp_global_sequence.html.md.erb
+++ b/markdown/reference/catalog/gp_global_sequence.html.md.erb
@@ -2,6 +2,25 @@
title: gp_global_sequence
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_global_sequence` table contains the log sequence number position in the transaction log. This table is used by persistent tables.
<a id="topic1__fe138428"></a>
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diff --git a/markdown/reference/catalog/gp_master_mirroring.html.md.erb b/markdown/reference/catalog/gp_master_mirroring.html.md.erb
index fa7ea18..fbb5fce 100644
--- a/markdown/reference/catalog/gp_master_mirroring.html.md.erb
+++ b/markdown/reference/catalog/gp_master_mirroring.html.md.erb
@@ -2,6 +2,25 @@
title: gp_master_mirroring
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_master_mirroring` table contains state information about the standby master host and its associated write-ahead log (WAL) replication process. If this synchronization process (`gpsyncagent`) fails on the standby master, it may not always be noticeable to users of the system. This catalog is a place where HAWQ administrators can check to see if the standby master is current and fully synchronized.
<a id="topic1__op164584"></a>
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diff --git a/markdown/reference/catalog/gp_persistent_database_node.html.md.erb b/markdown/reference/catalog/gp_persistent_database_node.html.md.erb
index 2a3537a..3f154a0 100644
--- a/markdown/reference/catalog/gp_persistent_database_node.html.md.erb
+++ b/markdown/reference/catalog/gp_persistent_database_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_persistent_database_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_persistent_database_node` table keeps track of the status of file system objects in relation to the transaction status of database objects. This information is used to make sure the state of the system catalogs and the file system files persisted to disk are synchronized.
<a id="topic1__fi138428"></a>
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diff --git a/markdown/reference/catalog/gp_persistent_filespace_node.html.md.erb b/markdown/reference/catalog/gp_persistent_filespace_node.html.md.erb
index b682a88..6033aff 100644
--- a/markdown/reference/catalog/gp_persistent_filespace_node.html.md.erb
+++ b/markdown/reference/catalog/gp_persistent_filespace_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_persistent_filespace_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_persistent_filespace_node` table keeps track of the status of file system objects in relation to the transaction status of filespace objects. This information is used to make sure the state of the system catalogs and the file system files persisted to disk are synchronized.
<a id="topic1__fj138428"></a>
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diff --git a/markdown/reference/catalog/gp_persistent_relation_node.html.md.erb b/markdown/reference/catalog/gp_persistent_relation_node.html.md.erb
index f141cf7..a7c5041 100644
--- a/markdown/reference/catalog/gp_persistent_relation_node.html.md.erb
+++ b/markdown/reference/catalog/gp_persistent_relation_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_persistent_relation_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_persistent_relation_node` table table keeps track of the status of file system objects in relation to the transaction status of relation objects (tables, view, indexes, and so on). This information is used to make sure the state of the system catalogs and the file system files persisted to disk are synchronized.
<a id="topic1__fk138428"></a>
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diff --git a/markdown/reference/catalog/gp_persistent_relfile_node.html.md.erb b/markdown/reference/catalog/gp_persistent_relfile_node.html.md.erb
index 6d24a41..90c0e26 100644
--- a/markdown/reference/catalog/gp_persistent_relfile_node.html.md.erb
+++ b/markdown/reference/catalog/gp_persistent_relfile_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_persistent_relfile_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_persistent_relfile_node` table keeps track of the status of file system objects in relation to the transaction status of database objects. This information is used to make sure the state of the system catalogs and the file system files persisted to disk are synchronized.
<a id="topic1__fk138428"></a>
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diff --git a/markdown/reference/catalog/gp_persistent_tablespace_node.html.md.erb b/markdown/reference/catalog/gp_persistent_tablespace_node.html.md.erb
index 55c853e..1385b67 100644
--- a/markdown/reference/catalog/gp_persistent_tablespace_node.html.md.erb
+++ b/markdown/reference/catalog/gp_persistent_tablespace_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_persistent_tablespace_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_persistent_tablespace_node` table keeps track of the status of file system objects in relation to the transaction status of tablespace objects. This information is used to make sure the state of the system catalogs and the file system files persisted to disk are synchronized.
<a id="topic1__fm138428"></a>
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diff --git a/markdown/reference/catalog/gp_relfile_node.html.md.erb b/markdown/reference/catalog/gp_relfile_node.html.md.erb
index 971ff16..2958fc0 100644
--- a/markdown/reference/catalog/gp_relfile_node.html.md.erb
+++ b/markdown/reference/catalog/gp_relfile_node.html.md.erb
@@ -2,6 +2,25 @@
title: gp_relfile_node
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_relfile_node` table contains information about the file system objects for a relation (table, view, index, and so on).
<a id="topic1__fo138428"></a>
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diff --git a/markdown/reference/catalog/gp_segment_configuration.html.md.erb b/markdown/reference/catalog/gp_segment_configuration.html.md.erb
index 9fcf0cb..020510c 100644
--- a/markdown/reference/catalog/gp_segment_configuration.html.md.erb
+++ b/markdown/reference/catalog/gp_segment_configuration.html.md.erb
@@ -2,6 +2,25 @@
title: gp_segment_configuration
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_segment_configuration` table contains information about master, standby and segment configuration.
The HAWQ fault tolerance service (FTS) automatically detects the status of individual segments and marks the status of each segment in this table. If a segment is marked as DOWN, the corresponding reason is recorded in the [gp\_configuration\_history](gp_configuration_history.html) table. See [Understanding the Fault Tolerance Service](../../admin/FaultTolerance.html) for a description of the fault tolerance service.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/gp_version_at_initdb.html.md.erb
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diff --git a/markdown/reference/catalog/gp_version_at_initdb.html.md.erb b/markdown/reference/catalog/gp_version_at_initdb.html.md.erb
index 9e922e1..e24ab6b 100644
--- a/markdown/reference/catalog/gp_version_at_initdb.html.md.erb
+++ b/markdown/reference/catalog/gp_version_at_initdb.html.md.erb
@@ -2,6 +2,25 @@
title: gp_version_at_initdb
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gp_version_at_initdb` table is populated on the master and each segment in the HAWQ system. It identifies the version of HAWQ used when the system was first initialized. This table is defined in the `pg_global` tablespace, meaning it is globally shared across all databases in the system.
<a id="topic1__ft142845"></a>
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diff --git a/markdown/reference/catalog/pg_aggregate.html.md.erb b/markdown/reference/catalog/pg_aggregate.html.md.erb
index 1a02e89..6341c7b 100644
--- a/markdown/reference/catalog/pg_aggregate.html.md.erb
+++ b/markdown/reference/catalog/pg_aggregate.html.md.erb
@@ -2,6 +2,25 @@
title: pg_aggregate
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_aggregate` table stores information about aggregate functions. An aggregate function is a function that operates on a set of values (typically one column from each row that matches a query condition) and returns a single value computed from all these values. Typical aggregate functions are `sum`, `count`, and `max`. Each entry in `pg_aggregate` is an extension of an entry in `pg_proc`. The `pg_proc` entry carries the aggregate's name, input and output data types, and other information that is similar to ordinary functions.
<a id="topic1__fu141982"></a>
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diff --git a/markdown/reference/catalog/pg_am.html.md.erb b/markdown/reference/catalog/pg_am.html.md.erb
index 96ba56b..8a72f35 100644
--- a/markdown/reference/catalog/pg_am.html.md.erb
+++ b/markdown/reference/catalog/pg_am.html.md.erb
@@ -2,6 +2,25 @@
title: pg_am
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_am` table stores information about index access methods. There is one row for each index access method supported by the system.
<a id="topic1__fv141982"></a>
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diff --git a/markdown/reference/catalog/pg_amop.html.md.erb b/markdown/reference/catalog/pg_amop.html.md.erb
index c07bcd1..431cecf 100644
--- a/markdown/reference/catalog/pg_amop.html.md.erb
+++ b/markdown/reference/catalog/pg_amop.html.md.erb
@@ -2,6 +2,25 @@
title: pg_amop
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_amop` table stores information about operators associated with index access method operator classes. There is one row for each operator that is a member of an operator class.
<a id="topic1__fw143542"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_amproc.html.md.erb
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diff --git a/markdown/reference/catalog/pg_amproc.html.md.erb b/markdown/reference/catalog/pg_amproc.html.md.erb
index 7668bac..8f8b27c 100644
--- a/markdown/reference/catalog/pg_amproc.html.md.erb
+++ b/markdown/reference/catalog/pg_amproc.html.md.erb
@@ -2,6 +2,25 @@
title: pg_amproc
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_amproc` table stores information about support procedures associated with index access method operator classes. There is one row for each support procedure belonging to an operator class.
<a id="topic1__fx143898"></a>
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diff --git a/markdown/reference/catalog/pg_appendonly.html.md.erb b/markdown/reference/catalog/pg_appendonly.html.md.erb
index b0a56d6..6b031f9 100644
--- a/markdown/reference/catalog/pg_appendonly.html.md.erb
+++ b/markdown/reference/catalog/pg_appendonly.html.md.erb
@@ -2,6 +2,25 @@
title: pg_appendonly
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_appendonly` table contains information about the storage options and other characteristics of append-only tables.
<a id="topic1__fy138428"></a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/catalog/pg_attrdef.html.md.erb
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diff --git a/markdown/reference/catalog/pg_attrdef.html.md.erb b/markdown/reference/catalog/pg_attrdef.html.md.erb
index f4af77d..27e9671 100644
--- a/markdown/reference/catalog/pg_attrdef.html.md.erb
+++ b/markdown/reference/catalog/pg_attrdef.html.md.erb
@@ -2,6 +2,25 @@
title: pg_attrdef
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_attrdef` table stores column default values. The main information about columns is stored in [pg\_attribute](pg_attribute.html#topic1). Only columns that explicitly specify a default value (when the table is created or the column is added) will have an entry here.
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index 53db267..9b6c1a8 100644
--- a/markdown/reference/catalog/pg_attribute.html.md.erb
+++ b/markdown/reference/catalog/pg_attribute.html.md.erb
@@ -2,6 +2,25 @@
title: pg_attribute
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_attribute` table stores information about table columns. There will be exactly one `pg_attribute` row for every column in every table in the database. (There will also be attribute entries for indexes, and all objects that have `pg_class` entries.) The term attribute is equivalent to column.
<a id="topic1__ga143898"></a>
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--- a/markdown/reference/catalog/pg_attribute_encoding.html.md.erb
+++ b/markdown/reference/catalog/pg_attribute_encoding.html.md.erb
@@ -2,6 +2,25 @@
title: pg_attribute_encoding
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_attribute_encoding` system catalog table contains column storage information.
<a id="topic1__gb177839"></a>
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index 7e770e0..ee8cf3c 100644
--- a/markdown/reference/catalog/pg_auth_members.html.md.erb
+++ b/markdown/reference/catalog/pg_auth_members.html.md.erb
@@ -2,6 +2,25 @@
title: pg_auth_members
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_auth_members` system catalog table shows the membership relations between roles. Any non-circular set of relationships is allowed. Because roles are system-wide, `pg_auth_members` is shared across all databases of a HAWQ system.
<a id="topic1__gc143898"></a>
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index ebae67c..2f1e8a8 100644
--- a/markdown/reference/catalog/pg_authid.html.md.erb
+++ b/markdown/reference/catalog/pg_authid.html.md.erb
@@ -2,6 +2,25 @@
title: pg_authid
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_authid` table contains information about database authorization identifiers (roles). A role subsumes the concepts of users and groups. A user is a role with the `rolcanlogin` flag set. Any role (with or without `rolcanlogin`) may have other roles as members. See [pg\_auth\_members](pg_auth_members.html#topic1).
Since this catalog contains passwords, it must not be publicly readable. [pg\_roles](pg_roles.html#topic1) is a publicly readable view on `pg_authid` that blanks out the password field.
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index 513c7a3..d5adf9d 100644
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+++ b/markdown/reference/catalog/pg_cast.html.md.erb
@@ -2,6 +2,25 @@
title: pg_cast
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_cast` table stores data type conversion paths, both built-in paths and those defined with `CREATE CAST`. The cast functions listed in `pg_cast` must always take the cast source type as their first argument type, and return the cast destination type as their result type. A cast function can have up to three arguments. The second argument, if present, must be type `integer`; it receives the type modifier associated with the destination type, or `-1` if there is none. The third argument, if present, must be type `boolean`; it receives `true` if the cast is an explicit cast, `false` otherwise.
It is legitimate to create a `pg_cast` entry in which the source and target types are the same, if the associated function takes more than one argument. Such entries represent 'length coercion functions' that coerce values of the type to be legal for a particular type modifier value. Note however that at present there is no support for associating non-default type modifiers with user-created data types, and so this facility is only of use for the small number of built-in types that have type modifier syntax built into the grammar.
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index 112375e..23a7dc8 100644
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+++ b/markdown/reference/catalog/pg_class.html.md.erb
@@ -2,6 +2,25 @@
title: pg_class
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The system catalog table `pg_class` catalogs tables and most everything else that has columns or is otherwise similar to a table (also known as *relations*). This includes indexes (see also [pg\_index](pg_index.html#topic1)), sequences, views, composite types, and TOAST tables. Not all columns are meaningful for all relation types.
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index 3524af0..f03ba41 100644
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+++ b/markdown/reference/catalog/pg_compression.html.md.erb
@@ -2,6 +2,25 @@
title: pg_compression
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_compression` system catalog table describes the compression methods available..
<a id="topic1__gg143898"></a>
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index 0f591fd..8db725b 100644
--- a/markdown/reference/catalog/pg_constraint.html.md.erb
+++ b/markdown/reference/catalog/pg_constraint.html.md.erb
@@ -2,6 +2,25 @@
title: pg_constraint
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_constraint` system catalog table stores check and foreign key constraints on tables. Column constraints are not treated specially. Every column constraint is equivalent to some table constraint. Not-null constraints are represented in the [pg\_attribute](pg_attribute.html#topic1) catalog table. Check constraints on domains are stored here, too.
<a id="topic1__gh143898"></a>
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index 43763bc..6e26377 100644
--- a/markdown/reference/catalog/pg_conversion.html.md.erb
+++ b/markdown/reference/catalog/pg_conversion.html.md.erb
@@ -2,6 +2,25 @@
title: pg_conversion
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_conversion` system catalog table describes the available encoding conversion procedures as defined by `CREATE CONVERSION`.
<a id="topic1__gi143898"></a>
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diff --git a/markdown/reference/catalog/pg_database.html.md.erb b/markdown/reference/catalog/pg_database.html.md.erb
index b02a532..280af6a 100644
--- a/markdown/reference/catalog/pg_database.html.md.erb
+++ b/markdown/reference/catalog/pg_database.html.md.erb
@@ -2,6 +2,25 @@
title: pg_database
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_database` system catalog table stores information about the available databases. Databases are created with the `CREATE DATABASE` SQL command. Unlike most system catalogs, `pg_database` is shared across all databases in the system. There is only one copy of `pg_database` per system, not one per database.
<a id="topic1__gj143898"></a>
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--- a/markdown/reference/catalog/pg_depend.html.md.erb
+++ b/markdown/reference/catalog/pg_depend.html.md.erb
@@ -2,6 +2,25 @@
title: pg_depend
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_depend` system catalog table records the dependency relationships between database objects. This information allows `DROP` commands to find which other objects must be dropped by `DROP CASCADE` or prevent dropping in the `DROP RESTRICT` case. See also [pg\_shdepend](pg_shdepend.html#topic1), which performs a similar function for dependencies involving objects that are shared across a HAWQ system.
In all cases, a `pg_depend` entry indicates that the referenced object may not be dropped without also dropping the dependent object. However, there are several subflavors identified by `deptype`:
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+++ b/markdown/reference/catalog/pg_description.html.md.erb
@@ -2,6 +2,25 @@
title: pg_description
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_description` system catalog table stores optional descriptions (comments) for each database object. Descriptions can be manipulated with the `COMMENT` command and viewed with `psql`'s `\d` meta-commands. Descriptions of many built-in system objects are provided in the initial contents of `pg_description`. See also [pg\_shdescription](pg_shdescription.html#topic1), which performs a similar function for descriptions involving objects that are shared across a HAWQ system.
<a id="topic1__gm143898"></a>
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+++ b/markdown/reference/catalog/pg_exttable.html.md.erb
@@ -2,6 +2,25 @@
title: pg_exttable
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_exttable` system catalog table is used to track external tables and web tables created by the `CREATE EXTERNAL TABLE` command.
<a id="topic1__gn143898"></a>
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+++ b/markdown/reference/catalog/pg_filespace.html.md.erb
@@ -2,6 +2,25 @@
title: pg_filespace
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_filespace` table contains information about the filespaces created in a HAWQ system. Every system contains a default filespace, `pg_system`, which is a collection of all the data directory locations created at system initialization time.
A tablespace requires a file system location to store its database files. In HAWQ, the master and each segment needs its own distinct storage location. This collection of file system locations for all components in a HAWQ system is referred to as a filespace.
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+++ b/markdown/reference/catalog/pg_filespace_entry.html.md.erb
@@ -2,6 +2,25 @@
title: pg_filespace_entry
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A tablespace requires a file system location to store its database files. In HAWQ, the master and each segment needs its own distinct storage location. This collection of file system locations for all components in a HAWQ system is referred to as a *filespace*. The `pg_filespace_entry` table contains information about the collection of file system locations across a HAWQ system that comprise a HAWQ filespace.
<a id="topic1__gp138428"></a>
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+++ b/markdown/reference/catalog/pg_index.html.md.erb
@@ -2,6 +2,25 @@
title: pg_index
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_index` system catalog table contains part of the information about indexes. The rest is mostly in [pg\_class](pg_class.html#topic1).
<a id="topic1__gq143898"></a>
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+++ b/markdown/reference/catalog/pg_inherits.html.md.erb
@@ -2,6 +2,25 @@
title: pg_inherits
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `pg_inherits` system catalog table records information about table inheritance hierarchies. There is one entry for each direct child table in the database. (Indirect inheritance can be determined by following chains of entries.) In HAWQ, inheritance relationships are created by both the `INHERITS` clause (standalone inheritance) and the `PARTITION BY` clause (partitioned child table inheritance) of `CREATE TABLE`.
<a id="topic1__gr143898"></a>
[2/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/pg_dump.html.md.erb
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diff --git a/markdown/reference/cli/client_utilities/pg_dump.html.md.erb b/markdown/reference/cli/client_utilities/pg_dump.html.md.erb
index d4a3186..43cab84 100644
--- a/markdown/reference/cli/client_utilities/pg_dump.html.md.erb
+++ b/markdown/reference/cli/client_utilities/pg_dump.html.md.erb
@@ -2,6 +2,25 @@
title: pg_dump
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Extracts a database into a single script file or other archive file.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/pg_dumpall.html.md.erb
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diff --git a/markdown/reference/cli/client_utilities/pg_dumpall.html.md.erb b/markdown/reference/cli/client_utilities/pg_dumpall.html.md.erb
index 255b459..87f39ac 100644
--- a/markdown/reference/cli/client_utilities/pg_dumpall.html.md.erb
+++ b/markdown/reference/cli/client_utilities/pg_dumpall.html.md.erb
@@ -2,6 +2,25 @@
title: pg_dumpall
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Extracts all databases in a HAWQ system to a single script file or other archive file.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/pg_restore.html.md.erb
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diff --git a/markdown/reference/cli/client_utilities/pg_restore.html.md.erb b/markdown/reference/cli/client_utilities/pg_restore.html.md.erb
index e612282..c4a8495 100644
--- a/markdown/reference/cli/client_utilities/pg_restore.html.md.erb
+++ b/markdown/reference/cli/client_utilities/pg_restore.html.md.erb
@@ -2,6 +2,25 @@
title: pg_restore
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Restores a database from an archive file created by `pg_dump`.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/psql.html.md.erb
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diff --git a/markdown/reference/cli/client_utilities/psql.html.md.erb b/markdown/reference/cli/client_utilities/psql.html.md.erb
index ee245e6..28a1834 100644
--- a/markdown/reference/cli/client_utilities/psql.html.md.erb
+++ b/markdown/reference/cli/client_utilities/psql.html.md.erb
@@ -2,6 +2,25 @@
title: psql
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Interactive command-line interface for HAWQ.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/client_utilities/vacuumdb.html.md.erb
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diff --git a/markdown/reference/cli/client_utilities/vacuumdb.html.md.erb b/markdown/reference/cli/client_utilities/vacuumdb.html.md.erb
index cbc37f3..870613e 100644
--- a/markdown/reference/cli/client_utilities/vacuumdb.html.md.erb
+++ b/markdown/reference/cli/client_utilities/vacuumdb.html.md.erb
@@ -2,6 +2,25 @@
title: vacuumdb
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Garbage-collects and analyzes a database.
`vacuumdb` is typically run on system catalog tables. It has no effect when run on HAWQ user tables.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/cli/management_tools.html.md.erb
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diff --git a/markdown/reference/cli/management_tools.html.md.erb b/markdown/reference/cli/management_tools.html.md.erb
index bbc4e3e..183c7f4 100644
--- a/markdown/reference/cli/management_tools.html.md.erb
+++ b/markdown/reference/cli/management_tools.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Management Tools Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Reference information for command-line utilities available in HAWQ.
- **[analyzedb](../../reference/cli/admin_utilities/analyzedb.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/guc/guc_category-list.html.md.erb
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diff --git a/markdown/reference/guc/guc_category-list.html.md.erb b/markdown/reference/guc/guc_category-list.html.md.erb
index 896df99..e9f870a 100644
--- a/markdown/reference/guc/guc_category-list.html.md.erb
+++ b/markdown/reference/guc/guc_category-list.html.md.erb
@@ -2,6 +2,25 @@
title: Configuration Parameter Categories
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Configuration parameters affect categories of server behaviors, such as resource consumption, query tuning, and authentication. The following sections describe HAWQ configuration parameter categories.
## <a id="topic_hfd_1tl_zp"></a>Append-Only Table Parameters
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/guc/guc_config.html.md.erb
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diff --git a/markdown/reference/guc/guc_config.html.md.erb b/markdown/reference/guc/guc_config.html.md.erb
index 56a2456..c128e23 100644
--- a/markdown/reference/guc/guc_config.html.md.erb
+++ b/markdown/reference/guc/guc_config.html.md.erb
@@ -2,6 +2,25 @@
title: About Server Configuration Parameters
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
There are many HAWQ server configuration parameters that affect the behavior of the HAWQ system. Many of these configuration parameters have the same names, settings, and behaviors as in a regular PostgreSQL database system.
- [Parameter Types and Values](#topic_vsn_22l_z4) describes the parameter data types and values.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/guc/parameter_definitions.html.md.erb
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diff --git a/markdown/reference/guc/parameter_definitions.html.md.erb b/markdown/reference/guc/parameter_definitions.html.md.erb
index f3f5757..6d88075 100644
--- a/markdown/reference/guc/parameter_definitions.html.md.erb
+++ b/markdown/reference/guc/parameter_definitions.html.md.erb
@@ -2,6 +2,25 @@
title: Configuration Parameters
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Descriptions of the HAWQ server configuration parameters listed alphabetically.
- **[add\_missing\_from](../../reference/guc/parameter_definitions.html#add_missing_from)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/hawq-reference.html.md.erb
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diff --git a/markdown/reference/hawq-reference.html.md.erb b/markdown/reference/hawq-reference.html.md.erb
index f5abd2a..ef9e0a2 100644
--- a/markdown/reference/hawq-reference.html.md.erb
+++ b/markdown/reference/hawq-reference.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Reference
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides a complete reference to HAWQ SQL commands, management utilities, configuration parameters, environment variables, and database objects.
- **[Server Configuration Parameter Reference](../reference/HAWQSiteConfig.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ABORT.html.md.erb
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diff --git a/markdown/reference/sql/ABORT.html.md.erb b/markdown/reference/sql/ABORT.html.md.erb
index ab053d8..3fa0d2c 100644
--- a/markdown/reference/sql/ABORT.html.md.erb
+++ b/markdown/reference/sql/ABORT.html.md.erb
@@ -2,6 +2,25 @@
title: ABORT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Aborts the current transaction.
## <a id="synop"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-AGGREGATE.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-AGGREGATE.html.md.erb b/markdown/reference/sql/ALTER-AGGREGATE.html.md.erb
index b1131ef..af9dc61 100644
--- a/markdown/reference/sql/ALTER-AGGREGATE.html.md.erb
+++ b/markdown/reference/sql/ALTER-AGGREGATE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER AGGREGATE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of an aggregate function.
## <a id="synop"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-CONVERSION.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-CONVERSION.html.md.erb b/markdown/reference/sql/ALTER-CONVERSION.html.md.erb
index 5b02ffc..13459f3 100644
--- a/markdown/reference/sql/ALTER-CONVERSION.html.md.erb
+++ b/markdown/reference/sql/ALTER-CONVERSION.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER CONVERSION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a CONVERSION.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-DATABASE.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-DATABASE.html.md.erb b/markdown/reference/sql/ALTER-DATABASE.html.md.erb
index 782daf5..2760397 100644
--- a/markdown/reference/sql/ALTER-DATABASE.html.md.erb
+++ b/markdown/reference/sql/ALTER-DATABASE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER DATABASE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the attributes of a database.
## <a id="alterrole__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-FUNCTION.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-FUNCTION.html.md.erb b/markdown/reference/sql/ALTER-FUNCTION.html.md.erb
index f21a808..e9a7b5b 100644
--- a/markdown/reference/sql/ALTER-FUNCTION.html.md.erb
+++ b/markdown/reference/sql/ALTER-FUNCTION.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER FUNCTION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a function.
## <a id="alterfunction__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-OPERATOR-CLASS.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-OPERATOR-CLASS.html.md.erb b/markdown/reference/sql/ALTER-OPERATOR-CLASS.html.md.erb
index 1d2878e..37d7d51 100644
--- a/markdown/reference/sql/ALTER-OPERATOR-CLASS.html.md.erb
+++ b/markdown/reference/sql/ALTER-OPERATOR-CLASS.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER OPERATOR CLASS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of an operator class.
## <a id="synop"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-OPERATOR.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-OPERATOR.html.md.erb b/markdown/reference/sql/ALTER-OPERATOR.html.md.erb
index a63d838..bd34eac 100644
--- a/markdown/reference/sql/ALTER-OPERATOR.html.md.erb
+++ b/markdown/reference/sql/ALTER-OPERATOR.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER OPERATOR
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of an operator.
## <a id="synop"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-RESOURCE-QUEUE.html.md.erb
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diff --git a/markdown/reference/sql/ALTER-RESOURCE-QUEUE.html.md.erb b/markdown/reference/sql/ALTER-RESOURCE-QUEUE.html.md.erb
index ec051e8..c8b650d 100644
--- a/markdown/reference/sql/ALTER-RESOURCE-QUEUE.html.md.erb
+++ b/markdown/reference/sql/ALTER-RESOURCE-QUEUE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER RESOURCE QUEUE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Modify an existing resource queue.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-ROLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ALTER-ROLE.html.md.erb b/markdown/reference/sql/ALTER-ROLE.html.md.erb
index ccc2c28..ab933b4 100644
--- a/markdown/reference/sql/ALTER-ROLE.html.md.erb
+++ b/markdown/reference/sql/ALTER-ROLE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER ROLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes a database role (user or group).
## <a id="alterrole__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-TABLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ALTER-TABLE.html.md.erb b/markdown/reference/sql/ALTER-TABLE.html.md.erb
index 4303f0c..2e320c2 100644
--- a/markdown/reference/sql/ALTER-TABLE.html.md.erb
+++ b/markdown/reference/sql/ALTER-TABLE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER TABLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a table.
## <a id="altertable__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-TABLESPACE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ALTER-TABLESPACE.html.md.erb b/markdown/reference/sql/ALTER-TABLESPACE.html.md.erb
index e539177..e805268 100644
--- a/markdown/reference/sql/ALTER-TABLESPACE.html.md.erb
+++ b/markdown/reference/sql/ALTER-TABLESPACE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER TABLESPACE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a tablespace.
## <a id="synopsis"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-TYPE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ALTER-TYPE.html.md.erb b/markdown/reference/sql/ALTER-TYPE.html.md.erb
index da50e80..2350b81 100644
--- a/markdown/reference/sql/ALTER-TYPE.html.md.erb
+++ b/markdown/reference/sql/ALTER-TYPE.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER TYPE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a data type.
## <a id="synopsis"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ALTER-USER.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ALTER-USER.html.md.erb b/markdown/reference/sql/ALTER-USER.html.md.erb
index f53e788..500c5f3 100644
--- a/markdown/reference/sql/ALTER-USER.html.md.erb
+++ b/markdown/reference/sql/ALTER-USER.html.md.erb
@@ -2,6 +2,25 @@
title: ALTER USER
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Changes the definition of a database role (user).
## <a id="alteruser__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/ANALYZE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/ANALYZE.html.md.erb b/markdown/reference/sql/ANALYZE.html.md.erb
index 983696a..eb0af77 100644
--- a/markdown/reference/sql/ANALYZE.html.md.erb
+++ b/markdown/reference/sql/ANALYZE.html.md.erb
@@ -2,6 +2,25 @@
title: ANALYZE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Collects statistics about a database.
## <a id="synopsis"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/BEGIN.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/BEGIN.html.md.erb b/markdown/reference/sql/BEGIN.html.md.erb
index 265e66e..944a87c 100644
--- a/markdown/reference/sql/BEGIN.html.md.erb
+++ b/markdown/reference/sql/BEGIN.html.md.erb
@@ -2,6 +2,25 @@
title: BEGIN
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Starts a transaction block.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CHECKPOINT.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CHECKPOINT.html.md.erb b/markdown/reference/sql/CHECKPOINT.html.md.erb
index d699013..cd40ebd 100644
--- a/markdown/reference/sql/CHECKPOINT.html.md.erb
+++ b/markdown/reference/sql/CHECKPOINT.html.md.erb
@@ -2,6 +2,25 @@
title: CHECKPOINT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Forces a transaction log checkpoint.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CLOSE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CLOSE.html.md.erb b/markdown/reference/sql/CLOSE.html.md.erb
index ae9c958..4f13a01 100644
--- a/markdown/reference/sql/CLOSE.html.md.erb
+++ b/markdown/reference/sql/CLOSE.html.md.erb
@@ -2,6 +2,25 @@
title: CLOSE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Closes a cursor.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/COMMIT.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/COMMIT.html.md.erb b/markdown/reference/sql/COMMIT.html.md.erb
index dd91969..55be66d 100644
--- a/markdown/reference/sql/COMMIT.html.md.erb
+++ b/markdown/reference/sql/COMMIT.html.md.erb
@@ -2,6 +2,25 @@
title: COMMIT
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Commits the current transaction.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/COPY.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/COPY.html.md.erb b/markdown/reference/sql/COPY.html.md.erb
index aaa2270..de34dfb 100644
--- a/markdown/reference/sql/COPY.html.md.erb
+++ b/markdown/reference/sql/COPY.html.md.erb
@@ -2,6 +2,25 @@
title: COPY
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Copies data between a file and a table.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-AGGREGATE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-AGGREGATE.html.md.erb b/markdown/reference/sql/CREATE-AGGREGATE.html.md.erb
index a195224..e8f5d24 100644
--- a/markdown/reference/sql/CREATE-AGGREGATE.html.md.erb
+++ b/markdown/reference/sql/CREATE-AGGREGATE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE AGGREGATE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new aggregate function.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-CAST.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-CAST.html.md.erb b/markdown/reference/sql/CREATE-CAST.html.md.erb
index af35173..ec2ba04 100644
--- a/markdown/reference/sql/CREATE-CAST.html.md.erb
+++ b/markdown/reference/sql/CREATE-CAST.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE CAST
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new cast.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-CONVERSION.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-CONVERSION.html.md.erb b/markdown/reference/sql/CREATE-CONVERSION.html.md.erb
index 5bc7910..92e1dda 100644
--- a/markdown/reference/sql/CREATE-CONVERSION.html.md.erb
+++ b/markdown/reference/sql/CREATE-CONVERSION.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE CONVERSION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new encoding conversion.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-DATABASE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-DATABASE.html.md.erb b/markdown/reference/sql/CREATE-DATABASE.html.md.erb
index 1f5467e..3a8612a 100644
--- a/markdown/reference/sql/CREATE-DATABASE.html.md.erb
+++ b/markdown/reference/sql/CREATE-DATABASE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE DATABASE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Creates a new database.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-EXTERNAL-TABLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-EXTERNAL-TABLE.html.md.erb b/markdown/reference/sql/CREATE-EXTERNAL-TABLE.html.md.erb
index 3479e3e..c46870c 100644
--- a/markdown/reference/sql/CREATE-EXTERNAL-TABLE.html.md.erb
+++ b/markdown/reference/sql/CREATE-EXTERNAL-TABLE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE EXTERNAL TABLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new external table.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-FUNCTION.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-FUNCTION.html.md.erb b/markdown/reference/sql/CREATE-FUNCTION.html.md.erb
index 6675752..467ad69 100644
--- a/markdown/reference/sql/CREATE-FUNCTION.html.md.erb
+++ b/markdown/reference/sql/CREATE-FUNCTION.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE FUNCTION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new function.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-GROUP.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-GROUP.html.md.erb b/markdown/reference/sql/CREATE-GROUP.html.md.erb
index 79cc6aa..81d09a3 100644
--- a/markdown/reference/sql/CREATE-GROUP.html.md.erb
+++ b/markdown/reference/sql/CREATE-GROUP.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE GROUP
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-LANGUAGE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-LANGUAGE.html.md.erb b/markdown/reference/sql/CREATE-LANGUAGE.html.md.erb
index 6643fef..e12b05c 100644
--- a/markdown/reference/sql/CREATE-LANGUAGE.html.md.erb
+++ b/markdown/reference/sql/CREATE-LANGUAGE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE LANGUAGE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new procedural language.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-OPERATOR-CLASS.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-OPERATOR-CLASS.html.md.erb b/markdown/reference/sql/CREATE-OPERATOR-CLASS.html.md.erb
index 9c093c1..fd4e59c 100644
--- a/markdown/reference/sql/CREATE-OPERATOR-CLASS.html.md.erb
+++ b/markdown/reference/sql/CREATE-OPERATOR-CLASS.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE OPERATOR CLASS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new operator class.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-OPERATOR.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-OPERATOR.html.md.erb b/markdown/reference/sql/CREATE-OPERATOR.html.md.erb
index 570d226..0622abb 100644
--- a/markdown/reference/sql/CREATE-OPERATOR.html.md.erb
+++ b/markdown/reference/sql/CREATE-OPERATOR.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE OPERATOR
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new operator.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-RESOURCE-QUEUE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-RESOURCE-QUEUE.html.md.erb b/markdown/reference/sql/CREATE-RESOURCE-QUEUE.html.md.erb
index 8f9fe93..4ebaf7a 100644
--- a/markdown/reference/sql/CREATE-RESOURCE-QUEUE.html.md.erb
+++ b/markdown/reference/sql/CREATE-RESOURCE-QUEUE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE RESOURCE QUEUE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new resource queue.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-ROLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-ROLE.html.md.erb b/markdown/reference/sql/CREATE-ROLE.html.md.erb
index ec7ac7c..9125bd5 100644
--- a/markdown/reference/sql/CREATE-ROLE.html.md.erb
+++ b/markdown/reference/sql/CREATE-ROLE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE ROLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new database role (user or group).
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-SCHEMA.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-SCHEMA.html.md.erb b/markdown/reference/sql/CREATE-SCHEMA.html.md.erb
index f24e0cc..dbc8bfa 100644
--- a/markdown/reference/sql/CREATE-SCHEMA.html.md.erb
+++ b/markdown/reference/sql/CREATE-SCHEMA.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE SCHEMA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new schema.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-SEQUENCE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-SEQUENCE.html.md.erb b/markdown/reference/sql/CREATE-SEQUENCE.html.md.erb
index b2557c6..01b81d3 100644
--- a/markdown/reference/sql/CREATE-SEQUENCE.html.md.erb
+++ b/markdown/reference/sql/CREATE-SEQUENCE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE SEQUENCE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new sequence generator.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-TABLE-AS.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-TABLE-AS.html.md.erb b/markdown/reference/sql/CREATE-TABLE-AS.html.md.erb
index 1979af4..54a6ccd 100644
--- a/markdown/reference/sql/CREATE-TABLE-AS.html.md.erb
+++ b/markdown/reference/sql/CREATE-TABLE-AS.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE TABLE AS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new table from the results of a query.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-TABLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-TABLE.html.md.erb b/markdown/reference/sql/CREATE-TABLE.html.md.erb
index 162a438..825fa7e 100644
--- a/markdown/reference/sql/CREATE-TABLE.html.md.erb
+++ b/markdown/reference/sql/CREATE-TABLE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE TABLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new table.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-TABLESPACE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-TABLESPACE.html.md.erb b/markdown/reference/sql/CREATE-TABLESPACE.html.md.erb
index 2d20107..9f35e47 100644
--- a/markdown/reference/sql/CREATE-TABLESPACE.html.md.erb
+++ b/markdown/reference/sql/CREATE-TABLESPACE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE TABLESPACE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new tablespace.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-TYPE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-TYPE.html.md.erb b/markdown/reference/sql/CREATE-TYPE.html.md.erb
index 9e7b59f..8062198 100644
--- a/markdown/reference/sql/CREATE-TYPE.html.md.erb
+++ b/markdown/reference/sql/CREATE-TYPE.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE TYPE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new data type.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-USER.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-USER.html.md.erb b/markdown/reference/sql/CREATE-USER.html.md.erb
index 738c645..abc1a04 100644
--- a/markdown/reference/sql/CREATE-USER.html.md.erb
+++ b/markdown/reference/sql/CREATE-USER.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE USER
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new database role with the `LOGIN` privilege by default.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/CREATE-VIEW.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/CREATE-VIEW.html.md.erb b/markdown/reference/sql/CREATE-VIEW.html.md.erb
index e39d8d3..aec3d7c 100644
--- a/markdown/reference/sql/CREATE-VIEW.html.md.erb
+++ b/markdown/reference/sql/CREATE-VIEW.html.md.erb
@@ -2,6 +2,25 @@
title: CREATE VIEW
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a new view.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DEALLOCATE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DEALLOCATE.html.md.erb b/markdown/reference/sql/DEALLOCATE.html.md.erb
index 846f282..5a1f78b 100644
--- a/markdown/reference/sql/DEALLOCATE.html.md.erb
+++ b/markdown/reference/sql/DEALLOCATE.html.md.erb
@@ -2,6 +2,25 @@
title: DEALLOCATE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Deallocates a prepared statement.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DECLARE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DECLARE.html.md.erb b/markdown/reference/sql/DECLARE.html.md.erb
index d6fed83..9e3a246 100644
--- a/markdown/reference/sql/DECLARE.html.md.erb
+++ b/markdown/reference/sql/DECLARE.html.md.erb
@@ -2,6 +2,25 @@
title: DECLARE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Defines a cursor.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-AGGREGATE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-AGGREGATE.html.md.erb b/markdown/reference/sql/DROP-AGGREGATE.html.md.erb
index f40ca5f..7ec57d6 100644
--- a/markdown/reference/sql/DROP-AGGREGATE.html.md.erb
+++ b/markdown/reference/sql/DROP-AGGREGATE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP AGGREGATE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes an aggregate function.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-CAST.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-CAST.html.md.erb b/markdown/reference/sql/DROP-CAST.html.md.erb
index dd8e928..6623575 100644
--- a/markdown/reference/sql/DROP-CAST.html.md.erb
+++ b/markdown/reference/sql/DROP-CAST.html.md.erb
@@ -2,6 +2,25 @@
title: DROP CAST
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a cast.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-CONVERSION.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-CONVERSION.html.md.erb b/markdown/reference/sql/DROP-CONVERSION.html.md.erb
index d435417..a7ac247 100644
--- a/markdown/reference/sql/DROP-CONVERSION.html.md.erb
+++ b/markdown/reference/sql/DROP-CONVERSION.html.md.erb
@@ -2,6 +2,25 @@
title: DROP CONVERSION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a CONVERSION.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-DATABASE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-DATABASE.html.md.erb b/markdown/reference/sql/DROP-DATABASE.html.md.erb
index d8ae296..ead5e41 100644
--- a/markdown/reference/sql/DROP-DATABASE.html.md.erb
+++ b/markdown/reference/sql/DROP-DATABASE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP DATABASE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-EXTERNAL-TABLE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-EXTERNAL-TABLE.html.md.erb b/markdown/reference/sql/DROP-EXTERNAL-TABLE.html.md.erb
index 01d0fb1..4168073 100644
--- a/markdown/reference/sql/DROP-EXTERNAL-TABLE.html.md.erb
+++ b/markdown/reference/sql/DROP-EXTERNAL-TABLE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP EXTERNAL TABLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes an external table definition.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-FILESPACE.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-FILESPACE.html.md.erb b/markdown/reference/sql/DROP-FILESPACE.html.md.erb
index afae3fe..b2246f3 100644
--- a/markdown/reference/sql/DROP-FILESPACE.html.md.erb
+++ b/markdown/reference/sql/DROP-FILESPACE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP FILESPACE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a filespace.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-FUNCTION.html.md.erb
----------------------------------------------------------------------
diff --git a/markdown/reference/sql/DROP-FUNCTION.html.md.erb b/markdown/reference/sql/DROP-FUNCTION.html.md.erb
index 5ebd4e5..cbc1cb9 100644
--- a/markdown/reference/sql/DROP-FUNCTION.html.md.erb
+++ b/markdown/reference/sql/DROP-FUNCTION.html.md.erb
@@ -2,6 +2,25 @@
title: DROP FUNCTION
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a function.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-GROUP.html.md.erb
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diff --git a/markdown/reference/sql/DROP-GROUP.html.md.erb b/markdown/reference/sql/DROP-GROUP.html.md.erb
index 5fce3ae..55929d3 100644
--- a/markdown/reference/sql/DROP-GROUP.html.md.erb
+++ b/markdown/reference/sql/DROP-GROUP.html.md.erb
@@ -2,6 +2,25 @@
title: DROP GROUP
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-LANGUAGE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-LANGUAGE.html.md.erb b/markdown/reference/sql/DROP-LANGUAGE.html.md.erb
index efb95f8..0230ad8 100644
--- a/markdown/reference/sql/DROP-LANGUAGE.html.md.erb
+++ b/markdown/reference/sql/DROP-LANGUAGE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP LANGUAGE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a procedural language.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-OPERATOR-CLASS.html.md.erb
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diff --git a/markdown/reference/sql/DROP-OPERATOR-CLASS.html.md.erb b/markdown/reference/sql/DROP-OPERATOR-CLASS.html.md.erb
index da22425..9cb9362 100644
--- a/markdown/reference/sql/DROP-OPERATOR-CLASS.html.md.erb
+++ b/markdown/reference/sql/DROP-OPERATOR-CLASS.html.md.erb
@@ -2,6 +2,25 @@
title: DROP OPERATOR CLASS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes an operator class.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-OPERATOR.html.md.erb
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diff --git a/markdown/reference/sql/DROP-OPERATOR.html.md.erb b/markdown/reference/sql/DROP-OPERATOR.html.md.erb
index b59fde4..0bcff62 100644
--- a/markdown/reference/sql/DROP-OPERATOR.html.md.erb
+++ b/markdown/reference/sql/DROP-OPERATOR.html.md.erb
@@ -2,6 +2,25 @@
title: DROP OPERATOR
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes an operator.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-OWNED.html.md.erb
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diff --git a/markdown/reference/sql/DROP-OWNED.html.md.erb b/markdown/reference/sql/DROP-OWNED.html.md.erb
index 50c5272..0fde376 100644
--- a/markdown/reference/sql/DROP-OWNED.html.md.erb
+++ b/markdown/reference/sql/DROP-OWNED.html.md.erb
@@ -2,6 +2,25 @@
title: DROP OWNED
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes database objects owned by a database role.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-RESOURCE-QUEUE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-RESOURCE-QUEUE.html.md.erb b/markdown/reference/sql/DROP-RESOURCE-QUEUE.html.md.erb
index 473923f..4bf8ed4 100644
--- a/markdown/reference/sql/DROP-RESOURCE-QUEUE.html.md.erb
+++ b/markdown/reference/sql/DROP-RESOURCE-QUEUE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP RESOURCE QUEUE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a resource queue.
## <a id="topic1__section2"></a>Synopsis
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/reference/sql/DROP-ROLE.html.md.erb
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diff --git a/markdown/reference/sql/DROP-ROLE.html.md.erb b/markdown/reference/sql/DROP-ROLE.html.md.erb
index b1d305b..6ea5f76 100644
--- a/markdown/reference/sql/DROP-ROLE.html.md.erb
+++ b/markdown/reference/sql/DROP-ROLE.html.md.erb
@@ -2,6 +2,25 @@
title: DROP ROLE
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Removes a database role.
## <a id="topic1__section2"></a>Synopsis
[5/7] incubator-hawq-docs git commit: HAWQ-1305 Add apache license
header to doc source
Posted by yo...@apache.org.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-troubleshooting-gpfdist.html.md.erb
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diff --git a/markdown/datamgmt/load/g-troubleshooting-gpfdist.html.md.erb b/markdown/datamgmt/load/g-troubleshooting-gpfdist.html.md.erb
index 2e6a450..1b88477 100644
--- a/markdown/datamgmt/load/g-troubleshooting-gpfdist.html.md.erb
+++ b/markdown/datamgmt/load/g-troubleshooting-gpfdist.html.md.erb
@@ -2,6 +2,25 @@
title: Troubleshooting gpfdist
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The segments access `gpfdist` at runtime. Ensure that the HAWQ segment hosts have network access to `gpfdist`. `gpfdist` is a web server: test connectivity by running the following command from each host in the HAWQ array (segments and master):
``` shell
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-unloading-data-from-hawq-database.html.md.erb
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diff --git a/markdown/datamgmt/load/g-unloading-data-from-hawq-database.html.md.erb b/markdown/datamgmt/load/g-unloading-data-from-hawq-database.html.md.erb
index e0690ad..5576750 100644
--- a/markdown/datamgmt/load/g-unloading-data-from-hawq-database.html.md.erb
+++ b/markdown/datamgmt/load/g-unloading-data-from-hawq-database.html.md.erb
@@ -2,6 +2,25 @@
title: Unloading Data from HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A writable external table allows you to select rows from other database tables and output the rows to files, named pipes, to applications, or as output targets for parallel MapReduce calculations. You can define file-based and web-based writable external tables.
This topic describes how to unload data from HAWQ using parallel unload (writable external tables) and non-parallel unload (`COPY`).
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-unloading-data-using-a-writable-external-table.html.md.erb
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diff --git a/markdown/datamgmt/load/g-unloading-data-using-a-writable-external-table.html.md.erb b/markdown/datamgmt/load/g-unloading-data-using-a-writable-external-table.html.md.erb
index 377f2d6..a20c9ff 100644
--- a/markdown/datamgmt/load/g-unloading-data-using-a-writable-external-table.html.md.erb
+++ b/markdown/datamgmt/load/g-unloading-data-using-a-writable-external-table.html.md.erb
@@ -2,6 +2,25 @@
title: Unloading Data Using a Writable External Table
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Writable external tables allow only `INSERT` operations. You must grant `INSERT` permission on a table to enable access to users who are not the table owner or a superuser. For example:
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-unloading-data-using-copy.html.md.erb
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diff --git a/markdown/datamgmt/load/g-unloading-data-using-copy.html.md.erb b/markdown/datamgmt/load/g-unloading-data-using-copy.html.md.erb
index 816a2b5..7f30941 100644
--- a/markdown/datamgmt/load/g-unloading-data-using-copy.html.md.erb
+++ b/markdown/datamgmt/load/g-unloading-data-using-copy.html.md.erb
@@ -2,6 +2,25 @@
title: Unloading Data Using COPY
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
`COPY TO` copies data from a table to a file (or standard input) on the HAWQ master host using a single process on the HAWQ master instance. Use `COPY` to output a table's entire contents, or filter the output using a `SELECT` statement. For example:
``` sql
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-url-based-web-external-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-url-based-web-external-tables.html.md.erb b/markdown/datamgmt/load/g-url-based-web-external-tables.html.md.erb
index a115972..7df7fc7 100644
--- a/markdown/datamgmt/load/g-url-based-web-external-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-url-based-web-external-tables.html.md.erb
@@ -2,6 +2,25 @@
title: URL-based Web External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
A URL-based web table accesses data from a web server using the HTTP protocol. Web table data is dynamic; the data is not rescannable.
Specify the `LOCATION` of files on a web server using `http://`. The web data file(s) must reside on a web server that HAWQ segment hosts can access. The number of URLs specified corresponds to the minimum number of virtual segments that work in parallel to access the web table.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-using-a-custom-format.html.md.erb
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diff --git a/markdown/datamgmt/load/g-using-a-custom-format.html.md.erb b/markdown/datamgmt/load/g-using-a-custom-format.html.md.erb
index e83744a..8abe90d 100644
--- a/markdown/datamgmt/load/g-using-a-custom-format.html.md.erb
+++ b/markdown/datamgmt/load/g-using-a-custom-format.html.md.erb
@@ -2,6 +2,25 @@
title: Using a Custom Format
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You specify a custom data format in the `FORMAT` clause of `CREATE EXTERNAL TABLE`.
```
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html.md.erb
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diff --git a/markdown/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html.md.erb b/markdown/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html.md.erb
index 0c68b2c..a0619ff 100644
--- a/markdown/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html.md.erb
+++ b/markdown/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html.md.erb
@@ -2,6 +2,25 @@
title: Using the HAWQ File Server (gpfdist)
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gpfdist` protocol provides the best performance and is the easiest to set up. `gpfdist` ensures optimum use of all segments in your HAWQ system for external table reads.
This topic describes the setup and management tasks for using `gpfdist` with external tables.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-working-with-file-based-ext-tables.html.md.erb
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diff --git a/markdown/datamgmt/load/g-working-with-file-based-ext-tables.html.md.erb b/markdown/datamgmt/load/g-working-with-file-based-ext-tables.html.md.erb
index e024a7d..ae23711 100644
--- a/markdown/datamgmt/load/g-working-with-file-based-ext-tables.html.md.erb
+++ b/markdown/datamgmt/load/g-working-with-file-based-ext-tables.html.md.erb
@@ -2,6 +2,25 @@
title: Working with File-Based External Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
External tables provide access to data stored in data sources outside of HAWQ as if the data were stored in regular database tables. Data can be read from or written to external tables.
An external table is a HAWQ database table backed with data that resides outside of the database. An external table is either readable or writable. It can be used like a regular database table in SQL commands such as `SELECT` and `INSERT` and joined with other tables. External tables are most often used to load and unload database data.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-write-a-transform.html.md.erb
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diff --git a/markdown/datamgmt/load/g-write-a-transform.html.md.erb b/markdown/datamgmt/load/g-write-a-transform.html.md.erb
index 6b35ab2..5bb11dc 100644
--- a/markdown/datamgmt/load/g-write-a-transform.html.md.erb
+++ b/markdown/datamgmt/load/g-write-a-transform.html.md.erb
@@ -2,6 +2,25 @@
title: Write a Transform
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The transform specifies what to extract from the data.You can use any authoring environment and language appropriate for your project. For XML transformations, choose a technology such as XSLT, Joost (STX), Java, Python, or Perl, based on the goals and scope of the project.
In the price example, the next step is to transform the XML data into a simple two-column delimited format.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-write-the-gpfdist-configuration.html.md.erb
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--- a/markdown/datamgmt/load/g-write-the-gpfdist-configuration.html.md.erb
+++ b/markdown/datamgmt/load/g-write-the-gpfdist-configuration.html.md.erb
@@ -2,6 +2,25 @@
title: Write the gpfdist Configuration
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The `gpfdist` configuration is specified as a YAML 1.1 document. It specifies rules that `gpfdist` uses to select a Transform to apply when loading or extracting data.
This example `gpfdist` configuration contains the following items:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/datamgmt/load/g-xml-transformation-examples.html.md.erb
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--- a/markdown/datamgmt/load/g-xml-transformation-examples.html.md.erb
+++ b/markdown/datamgmt/load/g-xml-transformation-examples.html.md.erb
@@ -2,6 +2,25 @@
title: XML Transformation Examples
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The following examples demonstrate the complete process for different types of XML data and STX transformations. Files and detailed instructions associated with these examples can be downloaded from the Apache site `gpfdist_transform` tools demo page. Read the README file before you run the examples.
- **[Command-based Web External Tables](../../datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html)**
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-database.html.md.erb
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index d643fae..ba68098 100644
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+++ b/markdown/ddl/ddl-database.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Managing Databases
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Your HAWQ deployment may have multiple databases. This is different from some database management systems \(such as Oracle\) where the database instance *is* the database. Although you can create many databases in a HAWQ system, client programs can connect to and access only one database at a time \u2014 you cannot cross-query between databases.
## <a id="topic3"></a>About Template Databases
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-partition.html.md.erb
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diff --git a/markdown/ddl/ddl-partition.html.md.erb b/markdown/ddl/ddl-partition.html.md.erb
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+++ b/markdown/ddl/ddl-partition.html.md.erb
@@ -2,6 +2,25 @@
title: Partitioning Large Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Table partitioning enables supporting very large tables, such as fact tables, by logically dividing them into smaller, more manageable pieces. Partitioned tables can improve query performance by allowing the HAWQ query optimizer to scan only the data needed to satisfy a given query instead of scanning all the contents of a large table.
Partitioning does not change the physical distribution of table data across the segments. Table distribution is physical: HAWQ physically divides partitioned tables and non-partitioned tables across segments to enable parallel query processing. Table *partitioning* is logical: HAWQ logically divides big tables to improve query performance and facilitate data warehouse maintenance tasks, such as rolling old data out of the data warehouse.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-schema.html.md.erb
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index 7c361ba..6fb9b83 100644
--- a/markdown/ddl/ddl-schema.html.md.erb
+++ b/markdown/ddl/ddl-schema.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Managing Schemas
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Schemas logically organize objects and data in a database. Schemas allow you to have more than one object \(such as tables\) with the same name in the database without conflict if the objects are in different schemas.
## <a id="topic18"></a>The Default "Public" Schema
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-storage.html.md.erb
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+++ b/markdown/ddl/ddl-storage.html.md.erb
@@ -2,6 +2,25 @@
title: Table Storage Model and Distribution Policy
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ supports several storage models and a mix of storage models. When you create a table, you choose how to store its data. This topic explains the options for table storage and how to choose the best storage model for your workload.
**Note:** To simplify the creation of database tables, you can specify the default values for some table storage options with the HAWQ server configuration parameter `gp_default_storage_options`.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-table.html.md.erb
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diff --git a/markdown/ddl/ddl-table.html.md.erb b/markdown/ddl/ddl-table.html.md.erb
index bc4f0c4..4eb56af 100644
--- a/markdown/ddl/ddl-table.html.md.erb
+++ b/markdown/ddl/ddl-table.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Managing Tables
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ Tables are similar to tables in any relational database, except that table rows are distributed across the different segments in the system. When you create a table, you specify the table's distribution policy.
## <a id="topic26"></a>Creating a Table
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-tablespace.html.md.erb
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+++ b/markdown/ddl/ddl-tablespace.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Managing Tablespaces
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Tablespaces allow database administrators to have multiple file systems per machine and decide how to best use physical storage to store database objects. They are named locations within a filespace in which you can create objects. Tablespaces allow you to assign different storage for frequently and infrequently used database objects or to control the I/O performance on certain database objects. For example, place frequently-used tables on file systems that use high performance solid-state drives \(SSD\), and place other tables on standard hard drives.
A tablespace requires a file system location to store its database files. In HAWQ, the master and each segment require a distinct storage location. The collection of file system locations for all components in a HAWQ system is a *filespace*. Filespaces can be used by one or more tablespaces.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl-view.html.md.erb
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index 35da41e..999b81b 100644
--- a/markdown/ddl/ddl-view.html.md.erb
+++ b/markdown/ddl/ddl-view.html.md.erb
@@ -2,6 +2,25 @@
title: Creating and Managing Views
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Views enable you to save frequently used or complex queries, then access them in a `SELECT` statement as if they were a table. A view is not physically materialized on disk: the query runs as a subquery when you access the view.
If a subquery is associated with a single query, consider using the `WITH` clause of the `SELECT` command instead of creating a seldom-used view.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/ddl/ddl.html.md.erb
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diff --git a/markdown/ddl/ddl.html.md.erb b/markdown/ddl/ddl.html.md.erb
index 7873fe7..8d4a044 100644
--- a/markdown/ddl/ddl.html.md.erb
+++ b/markdown/ddl/ddl.html.md.erb
@@ -2,6 +2,25 @@
title: Defining Database Objects
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section covers data definition language \(DDL\) in HAWQ and how to create and manage database objects.
Creating objects in a HAWQ includes making up-front choices about data distribution, storage options, data loading, and other HAWQ features that will affect the ongoing performance of your database system. Understanding the options that are available and how the database will be used will help you make the right decisions.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/install/aws-config.html.md.erb
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diff --git a/markdown/install/aws-config.html.md.erb b/markdown/install/aws-config.html.md.erb
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--- a/markdown/install/aws-config.html.md.erb
+++ b/markdown/install/aws-config.html.md.erb
@@ -2,6 +2,25 @@
title: Amazon EC2 Configuration
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Amazon Elastic Compute Cloud (EC2) is a service provided by Amazon Web Services (AWS). You can install and configure HAWQ on virtual servers provided by Amazon EC2. The following information describes some considerations when deploying a HAWQ cluster in an Amazon EC2 environment.
## <a id="topic_wqv_yfx_y5"></a>About Amazon EC2
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/install/select-hosts.html.md.erb
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+++ b/markdown/install/select-hosts.html.md.erb
@@ -2,6 +2,25 @@
title: Select HAWQ Host Machines
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Before you begin to install HAWQ, follow these steps to select and prepare the host machines.
Complete this procedure for all HAWQ deployments:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/ElasticSegments.html.md.erb
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+++ b/markdown/overview/ElasticSegments.html.md.erb
@@ -2,6 +2,25 @@
title: Elastic Query Execution Runtime
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ uses dynamically allocated virtual segments to provide resources for query execution.
In HAWQ 1.x, the number of segments \(compute resource carrier\) used to run a query is fixed, no matter whether the underlying query is big query requiring many resources or a small query requiring little resources. This architecture is simple, however it uses resources inefficiently.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/HAWQArchitecture.html.md.erb
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+++ b/markdown/overview/HAWQArchitecture.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Architecture
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic presents HAWQ architecture and its main components.
In a typical HAWQ deployment, each slave node has one physical HAWQ segment, an HDFS DataNode and a NodeManager installed. Masters for HAWQ, HDFS and YARN are hosted on separate nodes.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/HAWQOverview.html.md.erb
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+++ b/markdown/overview/HAWQOverview.html.md.erb
@@ -2,6 +2,25 @@
title: What is HAWQ?
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ is a Hadoop native SQL query engine that combines the key technological advantages of MPP database with the scalability and convenience of Hadoop. HAWQ reads data from and writes data to HDFS natively.
HAWQ delivers industry-leading performance and linear scalability. It provides users the tools to confidently and successfully interact with petabyte range data sets. HAWQ provides users with a complete, standards compliant SQL interface. More specifically, HAWQ has the following features:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/HDFSCatalogCache.html.md.erb
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+++ b/markdown/overview/HDFSCatalogCache.html.md.erb
@@ -2,6 +2,25 @@
title: HDFS Catalog Cache
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HDFS catalog cache is a caching service used by HAWQ master to determine the distribution information of table data on HDFS.
HDFS is slow at RPC handling, especially when the number of concurrent requests is high. In order to decide which segments handle which part of data, HAWQ needs data location information from HDFS NameNodes. HDFS catalog cache is used to cache the data location information and accelerate HDFS RPCs.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/ManagementTools.html.md.erb
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--- a/markdown/overview/ManagementTools.html.md.erb
+++ b/markdown/overview/ManagementTools.html.md.erb
@@ -2,6 +2,25 @@
title: HAWQ Management Tools
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ management tools are consolidated into one `hawq` command.
The `hawq` command can init, start and stop each segment separately, and supports dynamic expansion of the cluster.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/RedundancyFailover.html.md.erb
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diff --git a/markdown/overview/RedundancyFailover.html.md.erb b/markdown/overview/RedundancyFailover.html.md.erb
index 90eec63..5a48bd0 100755
--- a/markdown/overview/RedundancyFailover.html.md.erb
+++ b/markdown/overview/RedundancyFailover.html.md.erb
@@ -2,6 +2,25 @@
title: High Availability, Redundancy and Fault Tolerance
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ ensures high availability for its clusters through system redundancy. HAWQ deployments utilize platform hardware redundancy, such as RAID for the master catalog, JBOD for segments and network redundancy for its interconnect layer. On the software level, HAWQ provides redundancy via master mirroring and dual cluster maintenance. In addition, HAWQ supports high availability NameNode configuration within HDFS.
To maintain cluster health, HAWQ uses a fault tolerance service based on heartbeats and on-demand probe protocols. It can identify newly added nodes dynamically and remove nodes from the cluster when it becomes unusable.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/ResourceManagement.html.md.erb
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diff --git a/markdown/overview/ResourceManagement.html.md.erb b/markdown/overview/ResourceManagement.html.md.erb
index 8f7e2fd..7f99069 100755
--- a/markdown/overview/ResourceManagement.html.md.erb
+++ b/markdown/overview/ResourceManagement.html.md.erb
@@ -2,6 +2,25 @@
title: Resource Management
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ provides several approaches to resource management and includes several user-configurable options, including integration with YARN's resource management.
HAWQ has the ability to manage resources by using the following mechanisms:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/TableDistributionStorage.html.md.erb
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diff --git a/markdown/overview/TableDistributionStorage.html.md.erb b/markdown/overview/TableDistributionStorage.html.md.erb
index ec1d8b5..678885b 100755
--- a/markdown/overview/TableDistributionStorage.html.md.erb
+++ b/markdown/overview/TableDistributionStorage.html.md.erb
@@ -2,6 +2,25 @@
title: Table Distribution and Storage
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ stores all table data, except the system table, in HDFS. When a user creates a table, the metadata is stored on the master's local file system and the table content is stored in HDFS.
In order to simplify table data management, all the data of one relation are saved under one HDFS folder.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/overview/system-overview.html.md.erb
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diff --git a/markdown/overview/system-overview.html.md.erb b/markdown/overview/system-overview.html.md.erb
index 9fc1c53..455ea0a 100644
--- a/markdown/overview/system-overview.html.md.erb
+++ b/markdown/overview/system-overview.html.md.erb
@@ -1,6 +1,25 @@
---
title: Apache HAWQ (Incubating) System Overview
---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
* <a href="./HAWQOverview.html" class="subnav">What is HAWQ?</a>
* <a href="./HAWQArchitecture.html" class="subnav">HAWQ Architecture</a>
* <a href="./TableDistributionStorage.html" class="subnav">Table Distribution and Storage</a>
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/UsingProceduralLanguages.html.md.erb
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diff --git a/markdown/plext/UsingProceduralLanguages.html.md.erb b/markdown/plext/UsingProceduralLanguages.html.md.erb
index bef1b93..2b83b91 100644
--- a/markdown/plext/UsingProceduralLanguages.html.md.erb
+++ b/markdown/plext/UsingProceduralLanguages.html.md.erb
@@ -2,6 +2,25 @@
title: Using Languages and Extensions in HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ supports user-defined functions that are created with the SQL and C built-in languages, and also supports user-defined aliases for internal functions.
HAWQ also supports user-defined functions written in languages other than SQL and C. These other languages are generically called *procedural languages* (PLs) and are extensions to the core HAWQ functionality. HAWQ specifically supports the PL/Java, PL/Perl, PL/pgSQL, PL/Python, and PL/R procedural languages.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/builtin_langs.html.md.erb
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diff --git a/markdown/plext/builtin_langs.html.md.erb b/markdown/plext/builtin_langs.html.md.erb
index 01891e8..882044a 100644
--- a/markdown/plext/builtin_langs.html.md.erb
+++ b/markdown/plext/builtin_langs.html.md.erb
@@ -2,6 +2,25 @@
title: Using HAWQ Built-In Languages
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides an introduction to using the HAWQ built-in languages.
HAWQ supports user-defined functions created with the SQL and C built-in languages. HAWQ also supports user-defined aliases for internal functions.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_pgcrypto.html.md.erb
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diff --git a/markdown/plext/using_pgcrypto.html.md.erb b/markdown/plext/using_pgcrypto.html.md.erb
index e3e9225..1e06f0b 100644
--- a/markdown/plext/using_pgcrypto.html.md.erb
+++ b/markdown/plext/using_pgcrypto.html.md.erb
@@ -2,6 +2,25 @@
title: Enabling Cryptographic Functions for PostgreSQL (pgcrypto)
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
`pgcrypto` is a package extension included in your HAWQ distribution. You must explicitly enable the cryptographic functions to use this extension.
## <a id="pgcryptoprereq"></a>Prerequisites
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_pljava.html.md.erb
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diff --git a/markdown/plext/using_pljava.html.md.erb b/markdown/plext/using_pljava.html.md.erb
index e463093..cb97f29 100644
--- a/markdown/plext/using_pljava.html.md.erb
+++ b/markdown/plext/using_pljava.html.md.erb
@@ -2,6 +2,25 @@
title: Using PL/Java
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides an overview of the HAWQ PL/Java procedural language extension.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_plperl.html.md.erb
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diff --git a/markdown/plext/using_plperl.html.md.erb b/markdown/plext/using_plperl.html.md.erb
index d6ffa04..f642fea 100644
--- a/markdown/plext/using_plperl.html.md.erb
+++ b/markdown/plext/using_plperl.html.md.erb
@@ -2,6 +2,25 @@
title: Using PL/Perl
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section contains an overview of the HAWQ PL/Perl language extension.
## <a id="enableplperl"></a>Enabling PL/Perl
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_plpgsql.html.md.erb
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diff --git a/markdown/plext/using_plpgsql.html.md.erb b/markdown/plext/using_plpgsql.html.md.erb
index 3661e9b..c778c70 100644
--- a/markdown/plext/using_plpgsql.html.md.erb
+++ b/markdown/plext/using_plpgsql.html.md.erb
@@ -2,6 +2,25 @@
title: Using PL/pgSQL in HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
SQL is the language of most other relational databases use as query language. It is portable and easy to learn. But every SQL statement must be executed individually by the database server.
PL/pgSQL is a loadable procedural language. PL/SQL can do the following:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_plpython.html.md.erb
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diff --git a/markdown/plext/using_plpython.html.md.erb b/markdown/plext/using_plpython.html.md.erb
index 063509a..32a6e6d 100644
--- a/markdown/plext/using_plpython.html.md.erb
+++ b/markdown/plext/using_plpython.html.md.erb
@@ -2,6 +2,25 @@
title: Using PL/Python in HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This section provides an overview of the HAWQ PL/Python procedural language extension.
## <a id="abouthawqplpython"></a>About HAWQ PL/Python
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/plext/using_plr.html.md.erb
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diff --git a/markdown/plext/using_plr.html.md.erb b/markdown/plext/using_plr.html.md.erb
index 367a1d0..ca4def7 100644
--- a/markdown/plext/using_plr.html.md.erb
+++ b/markdown/plext/using_plr.html.md.erb
@@ -2,6 +2,25 @@
title: Using PL/R in HAWQ
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
PL/R is a procedural language. With the HAWQ PL/R extension, you can write database functions in the R programming language and use R packages that contain R functions and data sets.
**Note**: To use PL/R in HAWQ, R must be installed on each node in your HAWQ cluster. Additionally, you must install the PL/R package on an existing HAWQ deployment or have specified PL/R as a build option when compiling HAWQ.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/ConfigurePXF.html.md.erb
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diff --git a/markdown/pxf/ConfigurePXF.html.md.erb b/markdown/pxf/ConfigurePXF.html.md.erb
index fec6b27..c21866e 100644
--- a/markdown/pxf/ConfigurePXF.html.md.erb
+++ b/markdown/pxf/ConfigurePXF.html.md.erb
@@ -2,6 +2,25 @@
title: Configuring PXF
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes how to configure the PXF service.
**Note:** After you make any changes to a PXF configuration file (such as `pxf-profiles.xml` for adding custom profiles), propagate the changes to all nodes with PXF installed, and then restart the PXF service on all nodes.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/HBasePXF.html.md.erb
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diff --git a/markdown/pxf/HBasePXF.html.md.erb b/markdown/pxf/HBasePXF.html.md.erb
index 8b89730..3be06d2 100644
--- a/markdown/pxf/HBasePXF.html.md.erb
+++ b/markdown/pxf/HBasePXF.html.md.erb
@@ -2,6 +2,25 @@
title: Accessing HBase Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
## <a id="installingthepxfhbaseplugin"></a>Prerequisites
Before trying to access HBase data with PXF, verify the following:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/HDFSFileDataPXF.html.md.erb
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diff --git a/markdown/pxf/HDFSFileDataPXF.html.md.erb b/markdown/pxf/HDFSFileDataPXF.html.md.erb
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--- a/markdown/pxf/HDFSFileDataPXF.html.md.erb
+++ b/markdown/pxf/HDFSFileDataPXF.html.md.erb
@@ -2,6 +2,25 @@
title: Accessing HDFS File Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HDFS is the primary distributed storage mechanism used by Apache Hadoop applications. The PXF HDFS plug-in reads file data stored in HDFS. The plug-in supports plain delimited and comma-separated-value format text files. The HDFS plug-in also supports the Avro binary format.
This section describes how to use PXF to access HDFS data, including how to create and query an external table from files in the HDFS data store.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/HDFSWritablePXF.html.md.erb
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diff --git a/markdown/pxf/HDFSWritablePXF.html.md.erb b/markdown/pxf/HDFSWritablePXF.html.md.erb
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--- a/markdown/pxf/HDFSWritablePXF.html.md.erb
+++ b/markdown/pxf/HDFSWritablePXF.html.md.erb
@@ -2,6 +2,25 @@
title: Writing Data to HDFS
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The PXF HDFS plug-in supports writable external tables using the `HdfsTextSimple` and `SequenceWritable` profiles. You might create a writable table to export data from a HAWQ internal table to binary or text HDFS files.
Use the `HdfsTextSimple` profile when writing text data. Use the `SequenceWritable` profile when dealing with binary data.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/HawqExtensionFrameworkPXF.html.md.erb
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diff --git a/markdown/pxf/HawqExtensionFrameworkPXF.html.md.erb b/markdown/pxf/HawqExtensionFrameworkPXF.html.md.erb
index 72ca3b6..1a49576 100644
--- a/markdown/pxf/HawqExtensionFrameworkPXF.html.md.erb
+++ b/markdown/pxf/HawqExtensionFrameworkPXF.html.md.erb
@@ -2,6 +2,25 @@
title: Using PXF with Unmanaged Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ Extension Framework (PXF) is an extensible framework that allows HAWQ to query external system data.�
PXF includes built-in connectors for accessing data inside HDFS files, Hive tables, and HBase tables. PXF also integrates with HCatalog to query Hive tables directly.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/HivePXF.html.md.erb
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diff --git a/markdown/pxf/HivePXF.html.md.erb b/markdown/pxf/HivePXF.html.md.erb
index 199c7a1..e0f6c79 100644
--- a/markdown/pxf/HivePXF.html.md.erb
+++ b/markdown/pxf/HivePXF.html.md.erb
@@ -2,6 +2,25 @@
title: Accessing Hive Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
Apache Hive is a distributed data warehousing infrastructure. Hive facilitates managing large data sets supporting multiple data formats, including comma-separated value (.csv), RC, ORC, and parquet. The PXF Hive plug-in reads data stored in Hive, as well as HDFS or HBase.
This section describes how to use PXF to access Hive data. Options for querying data stored in Hive include:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/InstallPXFPlugins.html.md.erb
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diff --git a/markdown/pxf/InstallPXFPlugins.html.md.erb b/markdown/pxf/InstallPXFPlugins.html.md.erb
index 4ae4101..4fbda74 100644
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+++ b/markdown/pxf/InstallPXFPlugins.html.md.erb
@@ -2,6 +2,25 @@
title: Installing PXF Plug-ins
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic describes how to install the built-in PXF service plug-ins that are required to connect PXF to HDFS, Hive, HBase, and JSON.
**Note:** PXF requires that you run Tomcat on the host machine. Tomcat reserves ports 8005, 8080, and 8009. If you have configured Oozie JXM reporting on a host that will run PXF, make sure that the reporting service uses a port other than 8005. This helps to prevent port conflict errors from occurring when you start the PXF service.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/JsonPXF.html.md.erb
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diff --git a/markdown/pxf/JsonPXF.html.md.erb b/markdown/pxf/JsonPXF.html.md.erb
index 97195ad..5f156c4 100644
--- a/markdown/pxf/JsonPXF.html.md.erb
+++ b/markdown/pxf/JsonPXF.html.md.erb
@@ -2,6 +2,25 @@
title: Accessing JSON File Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
The PXF JSON plug-in reads native JSON stored in HDFS. The plug-in supports common data types, as well as basic (N-level) projection and arrays.
To access JSON file data with HAWQ, the data must be stored in HDFS and an external table created from the HDFS data store.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/PXFExternalTableandAPIReference.html.md.erb
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diff --git a/markdown/pxf/PXFExternalTableandAPIReference.html.md.erb b/markdown/pxf/PXFExternalTableandAPIReference.html.md.erb
index 292616b..c947775 100644
--- a/markdown/pxf/PXFExternalTableandAPIReference.html.md.erb
+++ b/markdown/pxf/PXFExternalTableandAPIReference.html.md.erb
@@ -2,6 +2,25 @@
title: PXF External Tables and API
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
You can use the PXF API to create�your own connectors to access any other type of parallel data store or processing engine.
The PXF Java API lets you extend PXF functionality and add new services and formats without changing HAWQ. The API includes three classes that are extended to allow HAWQ to access an external data source: Fragmenter, Accessor, and Resolver.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/ReadWritePXF.html.md.erb
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diff --git a/markdown/pxf/ReadWritePXF.html.md.erb b/markdown/pxf/ReadWritePXF.html.md.erb
index 18f655d..f424afd 100644
--- a/markdown/pxf/ReadWritePXF.html.md.erb
+++ b/markdown/pxf/ReadWritePXF.html.md.erb
@@ -2,6 +2,25 @@
title: Using Profiles to Read and Write Data
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
PXF profiles are collections of common metadata attributes that can be used to simplify the reading and writing of data. You can use any of the built-in profiles that come with PXF or you can create your own.
For example, if you are writing single line records to text files on HDFS, you could use the built-in HdfsTextSimple profile. You specify this profile when you create the PXF external table used to write the data to HDFS.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/pxf/TroubleshootingPXF.html.md.erb
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diff --git a/markdown/pxf/TroubleshootingPXF.html.md.erb b/markdown/pxf/TroubleshootingPXF.html.md.erb
index 9febe09..c1bd43a 100644
--- a/markdown/pxf/TroubleshootingPXF.html.md.erb
+++ b/markdown/pxf/TroubleshootingPXF.html.md.erb
@@ -2,6 +2,25 @@
title: Troubleshooting PXF
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
## <a id="pxerrortbl"></a>PXF Errors
The following table lists some common errors encountered while using PXF:
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/HAWQQueryProcessing.html.md.erb
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diff --git a/markdown/query/HAWQQueryProcessing.html.md.erb b/markdown/query/HAWQQueryProcessing.html.md.erb
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--- a/markdown/query/HAWQQueryProcessing.html.md.erb
+++ b/markdown/query/HAWQQueryProcessing.html.md.erb
@@ -2,6 +2,25 @@
title: About HAWQ Query Processing
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
This topic provides an overview of how HAWQ processes queries. Understanding this process can be useful when writing and tuning queries.
Users issue queries to HAWQ as they would to any database management system. They connect to the database instance on the HAWQ master host using a client application such as `psql` and submit SQL statements.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/defining-queries.html.md.erb
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diff --git a/markdown/query/defining-queries.html.md.erb b/markdown/query/defining-queries.html.md.erb
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+++ b/markdown/query/defining-queries.html.md.erb
@@ -2,6 +2,25 @@
title: Defining Queries
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ is based on the PostgreSQL implementation of the SQL standard. SQL commands are typically entered using the standard PostgreSQL interactive terminal `psql`, but other programs that have similar functionality can be used as well.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/functions-operators.html.md.erb
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diff --git a/markdown/query/functions-operators.html.md.erb b/markdown/query/functions-operators.html.md.erb
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+++ b/markdown/query/functions-operators.html.md.erb
@@ -2,6 +2,25 @@
title: Using Functions and Operators
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
HAWQ evaluates functions and operators used in SQL expressions.
## <a id="topic27"></a>Using Functions in HAWQ
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-changed.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-changed.html.md.erb b/markdown/query/gporca/query-gporca-changed.html.md.erb
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--- a/markdown/query/gporca/query-gporca-changed.html.md.erb
+++ b/markdown/query/gporca/query-gporca-changed.html.md.erb
@@ -2,6 +2,25 @@
title: Changed Behavior with GPORCA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">When GPORCA is enabled, HAWQ's behavior changes. This topic describes these changes.</span>
- The command `CREATE TABLE AS` distributes table data randomly if the `DISTRIBUTED BY` clause is not specified and no primary or unique keys are specified.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-enable.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-enable.html.md.erb b/markdown/query/gporca/query-gporca-enable.html.md.erb
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--- a/markdown/query/gporca/query-gporca-enable.html.md.erb
+++ b/markdown/query/gporca/query-gporca-enable.html.md.erb
@@ -2,6 +2,25 @@
title: Enabling GPORCA
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc">Precompiled versions of HAWQ that include the GPORCA query optimizer enable it by default, no additional configuration is required. To use the GPORCA query optimizer in a HAWQ built from source, your build must include GPORCA. You must also enable specific HAWQ server configuration parameters at or after install time: </span>
- [Set the <code class="ph codeph">optimizer\_analyze\_root\_partition</code> parameter to <code class="ph codeph">on</code>](#topic_r5d_hv1_kr) to enable statistics collection for the root partition of a partitioned table.
http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/a42c05a9/markdown/query/gporca/query-gporca-fallback.html.md.erb
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diff --git a/markdown/query/gporca/query-gporca-fallback.html.md.erb b/markdown/query/gporca/query-gporca-fallback.html.md.erb
index 999e9a7..2c540a1 100644
--- a/markdown/query/gporca/query-gporca-fallback.html.md.erb
+++ b/markdown/query/gporca/query-gporca-fallback.html.md.erb
@@ -2,6 +2,25 @@
title: Determining The Query Optimizer In Use
---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
<span class="shortdesc"> When GPORCA is enabled, you can determine if HAWQ is using GPORCA or is falling back to the legacy query optimizer. </span>
These are two ways to determine which query optimizer HAWQ used to execute the query: