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https://issues.apache.org/jira/browse/HIVE-18258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt McCline reassigned HIVE-18258:
-----------------------------------
> Vectorization: Reduce-Side GROUP BY MERGEPARTIAL with duplicate columns is
> broken
> ---------------------------------------------------------------------------------
>
> Key: HIVE-18258
> URL: https://issues.apache.org/jira/browse/HIVE-18258
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Fix For: 3.0.0
>
>
> See Q file. Duplicate columns in key are not handled correctly.
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