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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8932) Enable n-way join on CBO
Date Fri, 21 Nov 2014 00:35:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14220305#comment-14220305
] 

Ashutosh Chauhan commented on HIVE-8932:
----------------------------------------

An attempt for this was made in HIVE-8558 but in other cases we still fail to do n-way joins
e.g., {{join12.q,ppd_join3.q,ppd_outer_join4.q}}

> Enable n-way join on CBO 
> -------------------------
>
>                 Key: HIVE-8932
>                 URL: https://issues.apache.org/jira/browse/HIVE-8932
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO
>    Affects Versions: 0.14.0
>            Reporter: Ashutosh Chauhan
>
> In some cases (not all ways) with CBO, we don't generate n-way join, when we could.



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