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https://issues.apache.org/jira/browse/HIVE-20988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16705176#comment-16705176
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Jesus Camacho Rodriguez commented on HIVE-20988:
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[~vgarg], would you mind creating an issue similar to
https://issues.apache.org/jira/browse/HIVE-19114 for the query in
materialized_view_rewrite_1.q and assign it to me? I will take a look at some
point. Thanks
> Wrong results for group by queries with primary key on multiple columns
> -----------------------------------------------------------------------
>
> Key: HIVE-20988
> URL: https://issues.apache.org/jira/browse/HIVE-20988
> Project: Hive
> Issue Type: Bug
> Affects Versions: 4.0.0
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Priority: Major
> Attachments: HIVE-20988.1.patch, HIVE-20988.2.patch
>
>
> If a table has multi column primary key group by optimization ends up
> removing group by which is semantically incorrect.
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