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https://issues.apache.org/jira/browse/HIVE-21780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-21780:
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Resolution: Fixed
Fix Version/s: 4.0.0
Status: Resolved (was: Patch Available)
Pushed to master, thanks for reviewing [~gopalv].
> SetHashGroupByMinReduction should check parent operator number of rows to
> compute reduction
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-21780
> URL: https://issues.apache.org/jira/browse/HIVE-21780
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-21780.01.patch, HIVE-21780.patch
>
>
> Currently it incorrectly checks the number of rows in the Group By operator
> itself.
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