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Posted to issues@flink.apache.org by "Aitozi (Jira)" <ji...@apache.org> on 2023/03/02 06:31:00 UTC

[jira] [Commented] (FLINK-31296) Add JoinConditionEqualityTransferRule to stream optimizer

    [ https://issues.apache.org/jira/browse/FLINK-31296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17695491#comment-17695491 ] 

Aitozi commented on FLINK-31296:
--------------------------------

But this will affect the join key pair in the Join operator which may affect the state compatibility, I'm not sure how to handle this implicit breaking

> Add JoinConditionEqualityTransferRule to stream optimizer
> ---------------------------------------------------------
>
>                 Key: FLINK-31296
>                 URL: https://issues.apache.org/jira/browse/FLINK-31296
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Planner
>            Reporter: Aitozi
>            Priority: Major
>
> I find that {{JoinConditionEqualityTransferRule}} is a common rule for batch and stream mode. So it should be added to the stream optimizer which will bring performance improvement in some case.
> Maybe, other rules also need to be reviewed whether can be aligned in batch and stream case.  



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