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