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https://issues.apache.org/jira/browse/HIVE-7173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14020890#comment-14020890
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Ashutosh Chauhan commented on HIVE-7173:
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+1 seems like patch file wasn't updated correctly for .q.out files
> Support HIVE-4867 on mapjoin of MR Tasks
> ----------------------------------------
>
> Key: HIVE-7173
> URL: https://issues.apache.org/jira/browse/HIVE-7173
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-7173.1.patch.txt
>
>
> HIVE-4867 dedups columns in RS for reducer join and RS for order-by. But
> small aliases of mapjoin of MR tasks still contains key columns in value
> exprs.
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