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Posted to issues@hive.apache.org by "Zoltan Haindrich (Jira)" <ji...@apache.org> on 2021/02/24 14:34:00 UTC

[jira] [Commented] (HIVE-24799) Rewise RS rowschema/colExprMap consistency in case of mapjoins

    [ https://issues.apache.org/jira/browse/HIVE-24799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17289964#comment-17289964 ] 

Zoltan Haindrich commented on HIVE-24799:
-----------------------------------------

note: fixing this is required to remove the extra SEL in the added RS in ParallelEdgeFixer

> Rewise RS rowschema/colExprMap consistency in case of mapjoins
> --------------------------------------------------------------
>
>                 Key: HIVE-24799
>                 URL: https://issues.apache.org/jira/browse/HIVE-24799
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>
> I've seen some odd things around MJ - so I added an if to skip those errors while I was fixing others.
> IIRC this this issue seemed more serious; the code did "know" that the RS had a bad schema and it went to the parent - I guess there was a reason to do that - and I guess fixing it won't be easy either.
> https://github.com/apache/hive/pull/1929#discussion_r579200496



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