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Posted to issues@flink.apache.org by "borislitvak (via GitHub)" <gi...@apache.org> on 2024/04/30 10:30:51 UTC
[PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
borislitvak opened a new pull request, #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118
(no comment)
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "boring-cyborg[bot] (via GitHub)" <gi...@apache.org>.
boring-cyborg[bot] commented on PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#issuecomment-2084941773
Thanks for opening this pull request! Please check out our contributing guidelines. (https://flink.apache.org/contributing/how-to-contribute.html)
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "borislitvak (via GitHub)" <gi...@apache.org>.
borislitvak commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1586364059
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Pushed a unit test, docs are still WIP
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "borislitvak (via GitHub)" <gi...@apache.org>.
borislitvak commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1591898186
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeRowConverter.java:
##########
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.converter.AbstractPostgresCompatibleRowConverter;
+import org.apache.flink.table.types.logical.RowType;
+
+import org.postgresql.jdbc.PgArray;
+
+/**
+ * Runtime converter that responsible to convert between JDBC object and Flink internal object for
+ * Snowflake.
+ */
+@Internal
+public class SnowflakeRowConverter extends AbstractPostgresCompatibleRowConverter<PgArray> {
+
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public String converterName() {
+ return "Snowflake";
+ }
+
+ // https://docs.snowflake.com/en/sql-reference/intro-summary-data-types
+ public SnowflakeRowConverter(RowType rowType) {
Review Comment:
@davidradl Could you please take a look at this PR?
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "davidradl (via GitHub)" <gi...@apache.org>.
davidradl commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1584685732
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Please could you add some junits and docs for this pr.
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "borislitvak (via GitHub)" <gi...@apache.org>.
borislitvak commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1585425522
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Will do!
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "borislitvak (via GitHub)" <gi...@apache.org>.
borislitvak commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1585423831
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeRowConverter.java:
##########
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.converter.AbstractPostgresCompatibleRowConverter;
+import org.apache.flink.table.types.logical.RowType;
+
+import org.postgresql.jdbc.PgArray;
+
+/**
+ * Runtime converter that responsible to convert between JDBC object and Flink internal object for
+ * Snowflake.
+ */
+@Internal
+public class SnowflakeRowConverter extends AbstractPostgresCompatibleRowConverter<PgArray> {
+
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public String converterName() {
+ return "Snowflake";
+ }
+
+ // https://docs.snowflake.com/en/sql-reference/intro-summary-data-types
+ public SnowflakeRowConverter(RowType rowType) {
Review Comment:
> I am not sure exactly how Snowflake SQL compares to the other SQLS. It seems to be close to SQL server , which has some TINYINT logic in its converter - it looks like Snowflake supports this type - so you need to add this to the converter.
>
> I also see https://docs.uipath.com/process-mining/automation-suite/2022.10/user-guide/sql-differences-between-snowflake-and-sql-server. Do any of these SQL quirks require converter changes?
>
> I notice that Snowflake SQL uses double quotes, where as Flink SQL uses back ticks , it would be worth testing that quotes work for Snowflake.
https://docs.snowflake.com/en/sql-reference/intro-summary-data-types
This code was tested with Flink, so whatever Flink does should work. I've provided an example in the PR.
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "borislitvak (via GitHub)" <gi...@apache.org>.
borislitvak commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1586816863
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Docs pushed as well. Please take a look @davidradl
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "davidradl (via GitHub)" <gi...@apache.org>.
davidradl commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1584710588
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeRowConverter.java:
##########
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.converter.AbstractPostgresCompatibleRowConverter;
+import org.apache.flink.table.types.logical.RowType;
+
+import org.postgresql.jdbc.PgArray;
+
+/**
+ * Runtime converter that responsible to convert between JDBC object and Flink internal object for
+ * Snowflake.
+ */
+@Internal
+public class SnowflakeRowConverter extends AbstractPostgresCompatibleRowConverter<PgArray> {
+
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public String converterName() {
+ return "Snowflake";
+ }
+
+ // https://docs.snowflake.com/en/sql-reference/intro-summary-data-types
+ public SnowflakeRowConverter(RowType rowType) {
Review Comment:
I am not sure exactly how Snowflake SQL compares to the other SQLS. It seems to be close to SQL server , which has some TINYINT logic in its converter - it looks like Snowflake supports this type - so you need to add this to the converter.
I also see [https://docs.uipath.com/process-mining/automation-suite/2022.10/user-guide/sql-differences-between-snowflake-and-sql-server](https://docs.uipath.com/process-mining/automation-suite/2022.10/user-guide/sql-differences-between-snowflake-and-sql-server). Do any of these SQL quirks require converter changes?
I notice that Snowflake SQL uses double quotes, where as Flink SQL uses back ticks , it would be worth testing that quotes work for Snowflake.
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "davidradl (via GitHub)" <gi...@apache.org>.
davidradl commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1584710588
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeRowConverter.java:
##########
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.converter.AbstractPostgresCompatibleRowConverter;
+import org.apache.flink.table.types.logical.RowType;
+
+import org.postgresql.jdbc.PgArray;
+
+/**
+ * Runtime converter that responsible to convert between JDBC object and Flink internal object for
+ * Snowflake.
+ */
+@Internal
+public class SnowflakeRowConverter extends AbstractPostgresCompatibleRowConverter<PgArray> {
+
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public String converterName() {
+ return "Snowflake";
+ }
+
+ // https://docs.snowflake.com/en/sql-reference/intro-summary-data-types
+ public SnowflakeRowConverter(RowType rowType) {
Review Comment:
I am not sure exactly how Snowflake SQL compares to the other SQLS. It seems to be close to SQL server , which has some TINYINT logic in its converter - it looks like Snowflake supports this.
I also see [https://docs.uipath.com/process-mining/automation-suite/2022.10/user-guide/sql-differences-between-snowflake-and-sql-server](https://docs.uipath.com/process-mining/automation-suite/2022.10/user-guide/sql-differences-between-snowflake-and-sql-server). Do any of these SQL quirks require converter changes?
I notice that Snowflake SQL uses double quotes, where as Flink SQL uses back ticks , it would be worth testing that quotes work for Snowflake.
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "davidradl (via GitHub)" <gi...@apache.org>.
davidradl commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1584685732
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Please could you add some junits for this pr.
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Re: [PR] [FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect [flink-connector-jdbc]
Posted by "davidradl (via GitHub)" <gi...@apache.org>.
davidradl commented on code in PR #118:
URL: https://github.com/apache/flink-connector-jdbc/pull/118#discussion_r1584685732
##########
flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/snowflake/dialect/SnowflakeDialectFactory.java:
##########
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.connector.jdbc.databases.snowflake.dialect;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialect;
+import org.apache.flink.connector.jdbc.dialect.JdbcDialectFactory;
+
+/** Factory for {@link SnowflakeDialect}. */
+@Internal
+public class SnowflakeDialectFactory implements JdbcDialectFactory {
+ @Override
+ public boolean acceptsURL(String url) {
+ return url.startsWith("jdbc:snowflake:");
+ }
+
+ @Override
+ public JdbcDialect create() {
Review Comment:
Please could you add some junits and docs for this pr please.
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