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https://issues.apache.org/jira/browse/FLINK-15001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16985782#comment-16985782
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godfrey he commented on FLINK-15001:
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I would like to fix this
> The digest of sub-plan reuse should contain RelNode's trait
> -----------------------------------------------------------
>
> Key: FLINK-15001
> URL: https://issues.apache.org/jira/browse/FLINK-15001
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.9.0, 1.9.1
> Reporter: godfrey he
> Priority: Major
> Fix For: 1.10.0
>
> Attachments: image-2019-12-02-10-49-46-916.png,
> image-2019-12-02-10-52-01-399.png
>
>
> This bug is found in [FLINK-14946|
> https://issues.apache.org/jira/browse/FLINK-14946]:
> The plan for the given sql in [FLINK-14946|
> https://issues.apache.org/jira/browse/FLINK-14946] is
> !image-2019-12-02-10-49-46-916.png!
> however, the plan after sub-plan reuse is:
> !image-2019-12-02-10-52-01-399.png!
> in the first picture, we could find that the accMode of two joins are
> different, but the two joins are reused in the second picture.
> The reason is the digest of sub-plan reuse does not contain RelNode's trait
> now.
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