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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2020/02/24 06:24:17 UTC
[GitHub] [incubator-doris] Lishi-hub opened a new pull request #2977:
Support null_or_empty function
Lishi-hub opened a new pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977
It returns true if the string is an empty string or NULL. Otherwise it returns false.
#2592 #2593
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[GitHub] [incubator-doris] morningman commented on issue #2977: Support
null_or_empty function
Posted by GitBox <gi...@apache.org>.
morningman commented on issue #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#issuecomment-593075673
It returns true if the string is empty or NULL. Otherwise it returns false.
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383631636
##########
File path: docs/documentation/cn/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+如果字符串为空字符串或者NULL，返回true。否则，返回false。
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383633882
##########
File path: docs/documentation/en/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+It returns true if the string is an empty string or NULL. Otherwise it returns false.
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
----------------------------------------------------------------
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383631681
##########
File path: docs/documentation/en/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+It returns true if the string is an empty string or NULL. Otherwise it returns false.
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
----------------------------------------------------------------
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[GitHub] [incubator-doris] HangyuanLiu commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
HangyuanLiu commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383269604
##########
File path: docs/documentation/en/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+It returns true if the string is an empty string or NULL. Otherwise it returns false.
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
```suggestion
```
----------------------------------------------------------------
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[GitHub] [incubator-doris] HangyuanLiu commented on issue #2977: Support
null_or_empty function
Posted by GitBox <gi...@apache.org>.
HangyuanLiu commented on issue #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#issuecomment-590787675
LGTM
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[GitHub] [incubator-doris] morningman removed a comment on issue #2977:
Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
morningman removed a comment on issue #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#issuecomment-593075673
It returns true if the string is empty or NULL. Otherwise it returns false.
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[GitHub] [incubator-doris] morningman merged pull request #2977: Support
null_or_empty function
Posted by GitBox <gi...@apache.org>.
morningman merged pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383633831
##########
File path: docs/documentation/cn/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+如果字符串为空字符串或者NULL，返回true。否则，返回false。
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
----------------------------------------------------------------
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383631681
##########
File path: docs/documentation/en/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+It returns true if the string is an empty string or NULL. Otherwise it returns false.
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
----------------------------------------------------------------
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[GitHub] [incubator-doris] HangyuanLiu commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
HangyuanLiu commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383269448
##########
File path: docs/documentation/cn/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+如果字符串为空字符串或者NULL，返回true。否则，返回false。
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
```suggestion
```
----------------------------------------------------------------
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[GitHub] [incubator-doris] Lishi-hub commented on a change in pull request
#2977: Support null_or_empty function
Posted by GitBox <gi...@apache.org>.
Lishi-hub commented on a change in pull request #2977: Support null_or_empty function
URL: https://github.com/apache/incubator-doris/pull/2977#discussion_r383631636
##########
File path: docs/documentation/cn/sql-reference/sql-functions/string-functions/null_or_empty.md
##########
@@ -0,0 +1,54 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT 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_or_empty
+## description
+### Syntax
+
+`BOOLEAN NULL_OR_EMPTY (VARCHAR str)`
+
+如果字符串为空字符串或者NULL，返回true。否则，返回false。
+
+## example
+
+```
+MySQL [(none)]> select null_or_empty(null);
++---------------------+
+| null_or_empty(NULL) |
++---------------------+
+| 1 |
++---------------------+
+
+MySQL [(none)]> select null_or_empty("");
++-------------------+
+| null_or_empty('') |
++-------------------+
+| 1 |
++-------------------+
+1 row in set (1.84 sec)
Review comment:
Modified
----------------------------------------------------------------
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