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https://issues.apache.org/jira/browse/HIVE-16441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Dere updated HIVE-16441:
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Resolution: Fixed
Fix Version/s: 3.0.0
Status: Resolved (was: Patch Available)
Committed to master
> De-duplicate semijoin branches in n-way joins
> ---------------------------------------------
>
> Key: HIVE-16441
> URL: https://issues.apache.org/jira/browse/HIVE-16441
> Project: Hive
> Issue Type: Improvement
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
> Fix For: 3.0.0
>
> Attachments: HIVE-16441.1.patch, HIVE-16441.2.patch,
> HIVE-16441.3.patch, HIVE-16441.4.patch
>
>
> Currently in n-way joins, semi join optimization creates n branches on same
> key. Instead it should reuse one branch for all the joins.
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