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https://issues.apache.org/jira/browse/HIVE-7613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szehon Ho updated HIVE-7613:
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Assignee: Szehon Ho
I'll take at this this week, but I might not be able to finish (be out next
week). I can hand it off to somebody else at that point.
> Research optimization of auto convert join to map join [Spark branch]
> ---------------------------------------------------------------------
>
> Key: HIVE-7613
> URL: https://issues.apache.org/jira/browse/HIVE-7613
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Chengxiang Li
> Assignee: Szehon Ho
> Priority: Minor
>
> ConvertJoinMapJoin is an optimization the replaces a common join(aka shuffle
> join) with a map join(aka broadcast or fragment replicate join) when
> possible. we need to research how to make it workable with Hive on Spark.
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