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https://issues.apache.org/jira/browse/PIG-4120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-4120:
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Fix Version/s: (was: 0.14.0)
0.15.0
> Broadcast the index file in case of POMergeCoGroup and POMergeJoin
> ------------------------------------------------------------------
>
> Key: PIG-4120
> URL: https://issues.apache.org/jira/browse/PIG-4120
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Reporter: Rohini Palaniswamy
> Fix For: 0.15.0
>
>
> Currently merge join and merge cogroup use two DAGs - the first DAG creates
> the index file in hdfs and second DAG does the merge join. Similar to
> replicate join, we can broadcast the index file and cache it and use it in
> merge join and merge cogroup. This will give better performance and also
> eliminate need for the second DAG.
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