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From GitBox <...@apache.org>
Subject [GitHub] [flink] godfreyhe opened a new pull request #8356: [FLINK-12424] [table-planner-blink] Supports dag (multiple-sinks query) optimization
Date Tue, 07 May 2019 06:01:53 GMT
godfreyhe opened a new pull request #8356: [FLINK-12424] [table-planner-blink] Supports dag
(multiple-sinks query) optimization
URL: https://github.com/apache/flink/pull/8356
   ## What is the purpose of the change
   *Supports dag (multiple-sinks query) optimization*
   ## Brief change log
     - *Add execute method in TableEnvironment to compile the multiple-sinks plan to transformations
and execute the job*
     - *Add implementation of explain method to display the multiple-sinks plan*
     - *Add RelNodeBlock to decompose the multiple-sinks plan to different block*
     - *Update Optimizer implementation to handle multiple-sinks optimization*
   ## Verifying this change
   This change added tests and can be verified as follows:
     - *Added ExplainTest to validate the explain result for different kind of queries*
     - *Added DagOptimizationTest to validate the optimized plan for different kind of queries*
   ## Does this pull request potentially affect one of the following parts:
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: (no)
     - The S3 file system connector: (no)
   ## Documentation
     - Does this pull request introduce a new feature? (no)
     - If yes, how is the feature documented? (not documented)

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