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https://issues.apache.org/jira/browse/PIG-3336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-3336:
-------------------------------

    Issue Type: Improvement  (was: Bug)
    
> Change IN operator to use or-expressions instead of EvalFunc
> ------------------------------------------------------------
>
>                 Key: PIG-3336
>                 URL: https://issues.apache.org/jira/browse/PIG-3336
>             Project: Pig
>          Issue Type: Improvement
>          Components: parser
>    Affects Versions: 0.12
>            Reporter: Aniket Mokashi
>            Assignee: Cheolsoo Park
>            Priority: Minor
>             Fix For: 0.12
>
>         Attachments: PIG-3336-2.patch, PIG-3336.patch
>
>
> Currently, IN operator uses EvalFunc<Boolean> to evaluate result. This is not 
> friendly with ProjectPushdown and hence values filtered by IN operator are 
> not pushed to the loaders. We need to change implementation to use 
> OR-expressions instead of UDF.

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