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https://issues.apache.org/jira/browse/HIVE-4180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan reopened HIVE-4180:
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Previous patch was too restrictive, it was leaving the filter in its original 
location. Whereas what we want is to filter to come up to PTFOp and don't get 
pushed beyond PTFOp. This is exactly what ScriptPPD does, so we can reuse it. 
LimitPPD also uses ScriptPPD for similar reason. 
                
> Filter getting dropped with PTFOperator
> ---------------------------------------
>
>                 Key: HIVE-4180
>                 URL: https://issues.apache.org/jira/browse/HIVE-4180
>             Project: Hive
>          Issue Type: Bug
>          Components: PTF-Windowing
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>
> Another case where filter push down was not handled correctly.

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