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https://issues.apache.org/jira/browse/HIVE-15489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun updated HIVE-15489:
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Status: Patch Available (was: Open)
> Alternatively use table scan stats for HoS
> ------------------------------------------
>
> Key: HIVE-15489
> URL: https://issues.apache.org/jira/browse/HIVE-15489
> Project: Hive
> Issue Type: Improvement
> Components: Spark, Statistics
> Affects Versions: 2.2.0
> Reporter: Chao Sun
> Assignee: Chao Sun
> Attachments: HIVE-15489.wip.patch
>
>
> For MapJoin in HoS, we should provide an option to only use stats in the TS
> rather than the populated stats in each of the join branch. This could be
> pretty conservative but more reliable.
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