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https://issues.apache.org/jira/browse/TAJO-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14377110#comment-14377110
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Jihoon Son commented on TAJO-1407:
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Sure. Thanks for nice finding.
> Minor performance improvement of MemSortExec
> --------------------------------------------
>
> Key: TAJO-1407
> URL: https://issues.apache.org/jira/browse/TAJO-1407
> Project: Tajo
> Issue Type: Improvement
> Components: physical operator
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: TAJO-1407.1.patch.txt
>
>
> Currently, tajo uses Collections.sort() with TupleCompartor, which can incur
> some overheads on comparing.
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