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https://issues.apache.org/jira/browse/HIVE-23666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134546#comment-17134546
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Jesus Camacho Rodriguez commented on HIVE-23666:
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+1
> checkHashModeEfficiency is skipped when a groupby operator doesn't have a
> grouping set
> --------------------------------------------------------------------------------------
>
> Key: HIVE-23666
> URL: https://issues.apache.org/jira/browse/HIVE-23666
> Project: Hive
> Issue Type: Bug
> Reporter: Ramesh Kumar Thangarajan
> Assignee: Ramesh Kumar Thangarajan
> Priority: Major
> Attachments: HIVE-23666.1.patch
>
>
> checkHashModeEfficiency is skipped when a groupby operator doesn't have a
> grouping set
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