Rohini Palaniswamy created PIG-4120:
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Summary: 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
Reporter: Rohini Palaniswamy
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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