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https://issues.apache.org/jira/browse/HIVE-22982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055073#comment-17055073
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Ashutosh Chauhan commented on HIVE-22982:
-----------------------------------------
+1
> TopN Key efficiency check might disable filter too soon
> -------------------------------------------------------
>
> Key: HIVE-22982
> URL: https://issues.apache.org/jira/browse/HIVE-22982
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 4.0.0
> Reporter: Attila Magyar
> Assignee: Attila Magyar
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-22982.1.patch, HIVE-22982.2.patch,
> HIVE-22982.3.patch
>
>
> The check is triggered after every n batches but there can be multiple
> filters, one for each partition. Some filters might have less data then the
> others.
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