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https://issues.apache.org/jira/browse/TAJO-1704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14730169#comment-14730169
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Jihoon Son commented on TAJO-1704:
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I found this patch has some problem which must be resolved.
If you aren't working on this issue now, it would be good to reschedule to 0.12.
> Apply ComparableTuple to *AggregateExec
> ---------------------------------------
>
> Key: TAJO-1704
> URL: https://issues.apache.org/jira/browse/TAJO-1704
> Project: Tajo
> Issue Type: Improvement
> Components: Physical Operator
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Minor
> Fix For: 0.11.0
>
>
> This work is originated from TAJO-1492 which is a old patch. I applied the
> changes in Hash/SortAggregateExec to the latest revision. But, I didn't apply
> the changes in distinct aggregation operator because they already were
> changed too much. Later, I'll make another jira issue for them.
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