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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6089) Implement decoration phase for rewriting predicated logical plan after volcano optimization phase
Date Thu, 23 Mar 2017 22:15:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15939315#comment-15939315
] 

ASF GitHub Bot commented on FLINK-6089:
---------------------------------------

Github user fhueske commented on the issue:

    https://github.com/apache/flink/pull/3564
  
    merging


> Implement decoration phase for rewriting predicated logical plan after volcano optimization
phase
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-6089
>                 URL: https://issues.apache.org/jira/browse/FLINK-6089
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: Shaoxuan Wang
>            Assignee: Hequn Cheng
>
> At present, there is no chance to modify the DataStreamRel tree after the volcano optimization.
We consider to add a decoration phase after volcano optimization phase. Decoration phase is
dedicated for rewriting predicated logical plan and is independent of cost module. After decoration
phase is added, we get the chance to apply retraction rules at this phase.



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