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https://issues.apache.org/jira/browse/HIVE-20503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16609143#comment-16609143
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Zoltan Haindrich commented on HIVE-20503:
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Now fastHashTableAvailable's only purpose is to give the fast estimates if it's
enabled; and the optimized if not.
> Use datastructure aware estimations during mapjoin selection
> ------------------------------------------------------------
>
> Key: HIVE-20503
> URL: https://issues.apache.org/jira/browse/HIVE-20503
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-20503.01.patch, HIVE-20503.01wip01.patch,
> HIVE-20503.01wip01.patch, HIVE-20503.02.patch, HIVE-20503.03.patch
>
>
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