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https://issues.apache.org/jira/browse/HIVE-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Namit Jain updated HIVE-3647:
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Status: Patch Available (was: Open)
Agree with you completely, Kevin.
Had not done a submit patch, since I wanted to run all the tests first.
> 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
>
>
> 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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