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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/05/18 10:00:44 UTC

[GitHub] [flink] wuchong opened a new pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

wuchong opened a new pull request #12221:
URL: https://github.com/apache/flink/pull/12221


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   ## What is the purpose of the change
   
   The legacy JDBC and HBase table source support projection push down. In order to make the user experience consistent. We should align the behavior and add tests. Otherwise, users may be superised when upgrade to new connector but the performance is regressive. 
   
   ## Brief change log
   
   - improve the testing implementation of projection push down (merge `TestProjectableValuesTableFactory` into  `TestValuesTableFactory`).
   - Add `TableSchemaUtil#projectSchema` to let connector can easily get the projected schema.
   - Make the new jdbc and hbase source have the ability to push projections
   
   
   ## Verifying this change
   
   - Added plan tests 
   - The projection pushdown integeration tests have already existed. 
   
   ## Verifying this change
   
   This change added a test which transforms a nested data type.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
   


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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   * 129d85d4bcc2b032ff5be1999a8a0277f31a2848 Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=1726) 
   
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[GitHub] [flink] wuchong closed pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
wuchong closed pull request #12221:
URL: https://github.com/apache/flink/pull/12221


   


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] godfreyhe commented on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
godfreyhe commented on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630614848


   thanks for the update, LGTM


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] wuchong commented on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
wuchong commented on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630563803


   Rebased to resolve compile problem and updated.


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630109415


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] godfreyhe commented on a change in pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
godfreyhe commented on a change in pull request #12221:
URL: https://github.com/apache/flink/pull/12221#discussion_r426996670



##########
File path: flink-connectors/flink-connector-hbase/src/test/java/org/apache/flink/connector/hbase/HBaseTablePlanTest.java
##########
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.hbase;
+
+import org.apache.flink.table.api.TableConfig;
+import org.apache.flink.table.planner.utils.StreamTableTestUtil;
+import org.apache.flink.table.planner.utils.TableTestBase;
+
+import org.junit.Test;
+
+/**
+ * Plan tests for HBase connector, for example, testing projection push down.
+ */
+public class HBaseTablePlanTest extends TableTestBase {
+
+	private final StreamTableTestUtil util = streamTestUtil(new TableConfig());
+
+	@Test
+	public void testProjectionPushDown() {

Review comment:
       also add some tests for `validatePrimaryKey` case ?

##########
File path: flink-connectors/flink-connector-jdbc/src/test/java/org/apache/flink/connector/jdbc/table/JdbcLookupTableITCase.java
##########
@@ -146,13 +150,17 @@ public void clearOutputTable() throws Exception {
 	public void test() throws Exception {

Review comment:
       give a more meaningful name here ?

##########
File path: flink-table/flink-table-common/src/main/java/org/apache/flink/table/utils/TableSchemaUtils.java
##########
@@ -61,6 +63,23 @@ public static TableSchema getPhysicalSchema(TableSchema tableSchema) {
 		return builder.build();
 	}
 
+	/**
+	 * Creates a new {@link TableSchema} with the projected fields from another {@link TableSchema}.
+	 *
+	 * @see org.apache.flink.table.connector.source.abilities.SupportsProjectionPushDown
+	 */
+	public static TableSchema projectSchema(TableSchema tableSchema, int[][] projectedFields) {

Review comment:
       please add some test for this method

##########
File path: flink-connectors/flink-connector-jdbc/src/test/java/org/apache/flink/connector/jdbc/table/JdbcLookupTableITCase.java
##########
@@ -46,24 +46,28 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import static org.apache.flink.connector.jdbc.JdbcTestFixture.DERBY_EBOOKSHOP_DB;
 import static org.apache.flink.table.api.Expressions.$;
+import static org.junit.Assert.assertEquals;
 
 /**
- * IT case for {@link JdbcLookupFunction}.
+ * IT case for lookup source of JDBC connector.
  */
 @RunWith(Parameterized.class)
-public class JdbcLookupFunctionITCase extends AbstractTestBase {
+public class JdbcLookupTableITCase extends AbstractTestBase {

Review comment:
       add some cases for projection

##########
File path: flink-connectors/flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/table/JdbcDynamicTableSource.java
##########
@@ -126,9 +128,20 @@ public ChangelogMode getChangelogMode() {
 		return ChangelogMode.insertOnly();
 	}
 
+	@Override
+	public boolean supportsNestedProjection() {
+		// JDBC doesn't support nested projection
+		return false;
+	}
+
+	@Override
+	public void applyProjection(int[][] projectedFields) {
+		this.physicalSchema = TableSchemaUtils.projectSchema(physicalSchema, projectedFields);

Review comment:
       `selectFields` need to be updated ?




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[GitHub] [flink] flinkbot commented on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630109415


   Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
   to review your pull request. We will use this comment to track the progress of the review.
   
   
   ## Automated Checks
   Last check on commit 129d85d4bcc2b032ff5be1999a8a0277f31a2848 (Mon May 18 11:04:37 UTC 2020)
   
   **Warnings:**
    * **1 pom.xml files were touched**: Check for build and licensing issues.
    * No documentation files were touched! Remember to keep the Flink docs up to date!
   
   
   <sub>Mention the bot in a comment to re-run the automated checks.</sub>
   ## Review Progress
   
   * ❓ 1. The [description] looks good.
   * ❓ 2. There is [consensus] that the contribution should go into to Flink.
   * ❓ 3. Needs [attention] from.
   * ❓ 4. The change fits into the overall [architecture].
   * ❓ 5. Overall code [quality] is good.
   
   Please see the [Pull Request Review Guide](https://flink.apache.org/contributing/reviewing-prs.html) for a full explanation of the review process.<details>
    The Bot is tracking the review progress through labels. Labels are applied according to the order of the review items. For consensus, approval by a Flink committer of PMC member is required <summary>Bot commands</summary>
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[GitHub] [flink] wuchong commented on a change in pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
wuchong commented on a change in pull request #12221:
URL: https://github.com/apache/flink/pull/12221#discussion_r427012826



##########
File path: flink-connectors/flink-connector-jdbc/src/test/java/org/apache/flink/connector/jdbc/table/JdbcLookupTableITCase.java
##########
@@ -46,24 +46,28 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import static org.apache.flink.connector.jdbc.JdbcTestFixture.DERBY_EBOOKSHOP_DB;
 import static org.apache.flink.table.api.Expressions.$;
+import static org.junit.Assert.assertEquals;
 
 /**
- * IT case for {@link JdbcLookupFunction}.
+ * IT case for lookup source of JDBC connector.
  */
 @RunWith(Parameterized.class)
-public class JdbcLookupFunctionITCase extends AbstractTestBase {
+public class JdbcLookupTableITCase extends AbstractTestBase {

Review comment:
       We don't support projection for lookup source.




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[GitHub] [flink] wuchong commented on a change in pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
wuchong commented on a change in pull request #12221:
URL: https://github.com/apache/flink/pull/12221#discussion_r427009783



##########
File path: flink-connectors/flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/table/JdbcDynamicTableSource.java
##########
@@ -126,9 +128,20 @@ public ChangelogMode getChangelogMode() {
 		return ChangelogMode.insertOnly();
 	}
 
+	@Override
+	public boolean supportsNestedProjection() {
+		// JDBC doesn't support nested projection
+		return false;
+	}
+
+	@Override
+	public void applyProjection(int[][] projectedFields) {
+		this.physicalSchema = TableSchemaUtils.projectSchema(physicalSchema, projectedFields);

Review comment:
       Removed `selectFields` because we don't need it. The `physicalSchema` is the selected schema. 




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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot commented on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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[GitHub] [flink] flinkbot edited a comment on pull request #12221: [FLINK-17797][FLINK-17798][hbase][jdbc] Align the behavior between the new and legacy HBase/JDBC table source

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #12221:
URL: https://github.com/apache/flink/pull/12221#issuecomment-630123655


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