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Date: Wed, 5 Dec 2012 06:56:59 +0000 (UTC)
From: "Namit Jain (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
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Subject: [jira] [Assigned] (HIVE-3765) Bucket map join optimization not
 applied to left semi join
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     [ https://issues.apache.org/jira/browse/HIVE-3765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Namit Jain reassigned HIVE-3765:
--------------------------------

    Assignee: Gang Tim Liu
    
> Bucket map join optimization not applied to left semi join
> ----------------------------------------------------------
>
>                 Key: HIVE-3765
>                 URL: https://issues.apache.org/jira/browse/HIVE-3765
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.11
>            Reporter: Kevin Wilfong
>            Assignee: Gang Tim Liu
>
> When all the hints and settings are present to use the bucket map join optimization, it will not get applied if the join is a left semi join.  It works for left outer joins, so it seems it should work for left semi joins.

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