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https://issues.apache.org/jira/browse/PIG-4766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070782#comment-15070782
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Pallavi Rao commented on PIG-4766:
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PIG-4709 introduced Combiner optimization for Group By. However, the patch did
not handle cases where constant/conditional expressions were used. It also did
not handle limit.
This JIRA is to address those gaps.
> Ensure GroupBy is optimized for all algebraic Operations
> --------------------------------------------------------
>
> Key: PIG-4766
> URL: https://issues.apache.org/jira/browse/PIG-4766
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: Pallavi Rao
> Assignee: Pallavi Rao
> Labels: spork
> Fix For: spark-branch
>
>
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