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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1213) sort-merge join does not work for sub-queries
Date Thu, 11 Mar 2010 05:59:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12843931#action_12843931
] 

Namit Jain commented on HIVE-1213:
----------------------------------

got some diffs

bucketmapjoin_subquery.q, input2.q and input3.q

Also, test TestHashMapWrapper failed with a NPE

> 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
>
>
> 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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