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From "caofangkun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2827) Implement nullsafe equi-join
Date Mon, 17 Jun 2013 08:20:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13685091#comment-13685091
] 

caofangkun commented on HIVE-2827:
----------------------------------

In file /hive/trunk/ql/src/test/queries/clientpositive/join_nullsafe.q 
there's a line of command seems useless:
"set hive.nullsafe.equijoin=true;"

                
> Implement nullsafe equi-join
> ----------------------------
>
>                 Key: HIVE-2827
>                 URL: https://issues.apache.org/jira/browse/HIVE-2827
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>         Environment: ubuntu 10.04
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>             Fix For: 0.9.0
>
>         Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.1.patch, ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.2.patch,
ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.3.patch, ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.4.patch,
ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.5.patch, ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.6.patch,
ASF.LICENSE.NOT.GRANTED--HIVE-2827.D1971.7.patch
>
>
> was part of HIVE-2810, but separated because it affected more classes than expected.
> {noformat}
> SELECT * FROM a JOIN b ON a.key <=> b.key
> {noformat}

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