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https://issues.apache.org/jira/browse/HIVE-17399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-17399:
---------------------------
    Summary: Semijoin: Do not remove semijoin branch if it feeds to 
TS->DPP_EVENT  (was: Do not remove semijoin branch if it feeds to TS->DPP_EVENT)

> 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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