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Date: Thu, 1 Apr 2010 22:06:27 +0000 (UTC)
From: "He Yongqiang (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Subject: [jira] Updated: (HIVE-1213) sort-merge join does not work for
 sub-queries
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     [ https://issues.apache.org/jira/browse/HIVE-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

He Yongqiang updated HIVE-1213:
-------------------------------

    Status: Patch Available  (was: Open)

> sort-merge join does not work for sub-queries
> ---------------------------------------------
>
>                 Key: HIVE-1213
>                 URL: https://issues.apache.org/jira/browse/HIVE-1213
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: He Yongqiang
>             Fix For: 0.6.0
>
>         Attachments: Hive-1213.1.patch, Hive-1213.4.patch, Hive-1213.5.patch, Hive-1213.6.patch, Hive-1213.7.patch, Hive-1213.8.patch, Hive-1213.9.patch
>
>
> A query like:
> select count(1) from (select /*+ MAPJOIN(x) */ from x join y ON ... ) subq;
> does not work - since there is no mapping between the join operator and the corresponding source

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