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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/01/13 07:24:43 UTC

[GitHub] [flink] godfreyhe opened a new pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

godfreyhe opened a new pull request #14626:
URL: https://github.com/apache/flink/pull/14626


   ## What is the purpose of the change
   
   *Separate the implementation of StreamExecDeduplicate*
   
   
   ## Brief change log
   
     - *Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode*
   
   ## Verifying this change
   
   This change is a refactoring rework covered by existing tests.
   
   ## 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, Kubernetes/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 #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759262176


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   ## Automated Checks
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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] wenlong88 commented on a change in pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
wenlong88 commented on a change in pull request #14626:
URL: https://github.com/apache/flink/pull/14626#discussion_r557007406



##########
File path: flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/nodes/physical/stream/StreamPhysicalDeduplicate.scala
##########
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.table.planner.plan.nodes.physical.stream
+
+import org.apache.flink.table.planner.calcite.FlinkTypeFactory
+import org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecDeduplicate
+import org.apache.flink.table.planner.plan.nodes.exec.{ExecEdge, ExecNode}
+import org.apache.flink.table.planner.plan.utils.ChangelogPlanUtils
+
+import org.apache.calcite.plan.{RelOptCluster, RelTraitSet}
+import org.apache.calcite.rel.`type`.RelDataType
+import org.apache.calcite.rel.{RelNode, RelWriter, SingleRel}
+
+import java.util
+
+/**
+ * Stream physical RelNode which deduplicate on keys and keeps only first row or last row.
+ * This node is an optimization of [[StreamPhysicalRank]] for some special cases.
+ * Compared to [[StreamPhysicalRank]], this node could use mini-batch and access less state.
+ * <p>NOTES: only supports sort on proctime now, sort on rowtime will not translated into

Review comment:
       the doc is out of date,  deduplicate based on rowtime is supported now.




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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot commented on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot commented on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759262176


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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[GitHub] [flink] godfreyhe merged pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
godfreyhe merged pull request #14626:
URL: https://github.com/apache/flink/pull/14626


   


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[GitHub] [flink] flinkbot edited a comment on pull request #14626: [FLINK-20948][table-planner-blink] Introduce StreamPhysicalDeduplicate, and make StreamExecDeduplicate only extended from ExecNode

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14626:
URL: https://github.com/apache/flink/pull/14626#issuecomment-759272820


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