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https://issues.apache.org/jira/browse/HIVE-17399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16151014#comment-16151014
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Deepak Jaiswal commented on HIVE-17399:
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[~gopalv] committed to master. Thanks Gopal.
> Semijoin: Do not remove semijoin branch if it feeds to TS->DPP_EVENT
> --------------------------------------------------------------------
>
> Key: HIVE-17399
> URL: https://issues.apache.org/jira/browse/HIVE-17399
> Project: Hive
> Issue Type: Bug
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
> Attachments: HIVE-17399.1.patch, HIVE-17399.2.patch,
> HIVE-17399.3.patch, HIVE-17399.4.patch
>
>
> If there is an incoming semijoin branch to a TS which has DPP event, then try
> to keep it as it may serve as an excellent filter for DPP thus reducing the
> input to join drastically.
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