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https://issues.apache.org/jira/browse/HIVE-20049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16530989#comment-16530989
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Zoltan Haindrich commented on HIVE-20049:
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I think "genLimitMapRedPlan" can be just inlined; as it only forwards the call
to another method
+1
> hive.groupby.limit.extrastep should be false by default
> -------------------------------------------------------
>
> Key: HIVE-20049
> URL: https://issues.apache.org/jira/browse/HIVE-20049
> Project: Hive
> Issue Type: Task
> Components: Query Planning
> Reporter: Ashutosh Chauhan
> Assignee: Laszlo Bodor
> Priority: Major
> Attachments: HIVE-20049.01.patch, HIVE-20049.02.patch
>
>
> In fact this flag is not needed since FetchTask can enforce limit there is
> never a reason to have another vertex purely for limit.
>
> It was introduced by HIVE-12963
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