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https://issues.apache.org/jira/browse/HIVE-18611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16349915#comment-16349915
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Gopal V commented on HIVE-18611:
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LGTM - +1 tests pending.
> Avoid memory allocation of aggregation buffer during stats computation
> -----------------------------------------------------------------------
>
> Key: HIVE-18611
> URL: https://issues.apache.org/jira/browse/HIVE-18611
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer, Statistics
> Affects Versions: 3.0.0, 2.3.2
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Priority: Major
> Labels: performance
> Attachments: HIVE-18611.patch
>
>
> Bloom filter aggregation buffer may result in allocation of upto ~594MB array
> which is unnecessary.
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