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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7986) Introduce FilterSetOpTransposeRule to Flink
Date Mon, 06 Nov 2017 15:53:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16240466#comment-16240466
] 

ASF GitHub Bot commented on FLINK-7986:
---------------------------------------

GitHub user Xpray opened a pull request:

    https://github.com/apache/flink/pull/4956

    [FLINK-7986][TableAPI & SQL] Introduce FilterSetOpTransposeRule to Flink

    
    
    ## What is the purpose of the change
    
    Introduce FilterSetOpTransposeRule to Flink
    
    
    ## Brief change log
    
    add `FilterSetOpTransposeRule.INSTANCE` to `FlinkRuleSets`
    
    
    ## Verifying this change
    
    
    This change is already covered by existing tests, such as *(org.apache.flink.table.api.stream.table.SetOpTransposeTest)*.
    
    
    ## 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


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Xpray/flink FLINK-7986

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/4956.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4956
    
----
commit be50be94109ca63ce0587f10ab5479978231237b
Author: Xpray <leonxpray@gmail.com>
Date:   2017-11-06T15:47:33Z

    [FLINK-7986][TableAPI & SQL] Introduce FilterSetOpTransposeRule to Flink

----


> Introduce FilterSetOpTransposeRule to Flink
> -------------------------------------------
>
>                 Key: FLINK-7986
>                 URL: https://issues.apache.org/jira/browse/FLINK-7986
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Ruidong Li
>            Assignee: Ruidong Li
>            Priority: Trivial
>
> A.unionAll(B).where.groupBy.select  
> =>
> A.where.unionAll(B.where).groupBy.select
> this rule will reduce networkIO



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