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https://issues.apache.org/jira/browse/HIVE-20988?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vineet Garg updated HIVE-20988:
-------------------------------
Resolution: Fixed
Fix Version/s: 4.0.0
Status: Resolved (was: Patch Available)
Pushed to master.
> 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
> Fix For: 4.0.0
>
> Attachments: HIVE-20988.1.patch, HIVE-20988.2.patch,
> HIVE-20988.3.patch, HIVE-20988.4.patch, HIVE-20988.5.patch,
> HIVE-20988.6.patch, HIVE-20988.7.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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