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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5220) Flink SQL projection pushdown
Date Thu, 08 Dec 2016 02:05:59 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15730809#comment-15730809
] 

ASF GitHub Bot commented on FLINK-5220:
---------------------------------------

Github user beyond1920 commented on the issue:

    https://github.com/apache/flink/pull/2923
  
    @fhueske , thanks for your review. I have already modified the pr based on your advice,
including following main changes:
    1. Adapt the cost model for the BatchTableSourceScan
    2. Modify DataSetCalcConverter -> RexProgramProjectExtractor, and add a test case
    Thanks.


> Flink SQL projection pushdown
> -----------------------------
>
>                 Key: FLINK-5220
>                 URL: https://issues.apache.org/jira/browse/FLINK-5220
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: zhangjing
>            Assignee: zhangjing
>
> The jira is to do projection pushdown optimization. Please go forward to the the design
document for more details.



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