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https://issues.apache.org/jira/browse/HIVE-16423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15966205#comment-15966205
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Deepak Jaiswal commented on HIVE-16423:
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RB link
https://reviews.apache.org/r/58390
> De-duplicate semijoin branches and add hint to enforce semi join optimization
> -----------------------------------------------------------------------------
>
> Key: HIVE-16423
> URL: https://issues.apache.org/jira/browse/HIVE-16423
> Project: Hive
> Issue Type: Task
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
> Attachments: HIVE-16423.1.patch
>
>
> Currently in an n-way join, a semi join branch is created n times. Instead,
> it should reuse the same branch.
> Add hints in semijoin to enforce particular semi join optimization.
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