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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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Xuefu Zhang reassigned HIVE-7613:
---------------------------------
Assignee: Suhas Satish (was: Szehon Ho)
Suhas has indicated his interest in working in map-join. Since Szehon is on
vacation, I'm assigning this to Suhas so as to continue the research for now.
I think we should have a design for this before we actually run into coding.
> 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: Suhas Satish
> Priority: Minor
> Attachments: HIve on Spark Map join background.docx
>
>
> 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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