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https://issues.apache.org/jira/browse/HIVE-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493411#comment-13493411
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Kevin Wilfong commented on HIVE-3647:
-------------------------------------
Comments on Phabricator.
> map-side groupby wrongly due to HIVE-3432
> -----------------------------------------
>
> Key: HIVE-3647
> URL: https://issues.apache.org/jira/browse/HIVE-3647
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.3647.1.patch, hive.3647.2.patch, hive.3647.3.patch,
> hive.3647.4.patch
>
>
> There seems to be a bug due to HIVE-3432.
> We are converting the group by to a map side group by after only looking at
> sorting columns. This can give wrong results if the data is sorted and
> bucketed by different columns.
> Add some tests for that scenario, verify and fix any issues.
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