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From "Chengxiang Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7613) Research and verify optimization of auto convert join to map join[Spark branch]
Date Tue, 05 Aug 2014 07:27:12 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chengxiang Li updated HIVE-7613:
--------------------------------

    Description: 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.

> Research and verify 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: Bug
>          Components: Spark
>            Reporter: Chengxiang Li
>
> 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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