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https://issues.apache.org/jira/browse/HIVE-8304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154234#comment-14154234
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Gopal V commented on HIVE-8304:
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+1, tests pending - [~vikram.dixit], this is aimed at 0.14 because it handles
NULLs on the reducer incorrectly.
> Tez Reduce-Side GROUP BY Vectorization doesn't copy NULL keys correctly
> -----------------------------------------------------------------------
>
> Key: HIVE-8304
> URL: https://issues.apache.org/jira/browse/HIVE-8304
> Project: Hive
> Issue Type: Bug
> Components: Tez, Vectorization
> Affects Versions: 0.14.0
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Fix For: 0.14.0
>
> Attachments: HIVE-8304.01.patch, HIVE-8304.2.patch
>
>
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