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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-1534) Join filters do not work correctly with outer joins
Date Thu, 09 Sep 2010 11:54:33 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated HIVE-1534:
------------------------------------------

    Attachment: patch-1534.txt

I worked on separating filters for outer joins. 
Here is a patch which does not push filters for outer joins and filters are applied in the
join implementation.

Patch would need some more work on SMBMapJoin. Please have look if the approach looks fine.

> Join filters do not work correctly with outer joins
> ---------------------------------------------------
>
>                 Key: HIVE-1534
>                 URL: https://issues.apache.org/jira/browse/HIVE-1534
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>         Attachments: patch-1534.txt
>
>
>  SELECT * FROM T1 LEFT OUTER JOIN T2 ON (T1.c1=T2.c2 AND T1.c1 < 10)
> and  SELECT * FROM T1 RIGHT OUTER JOIN T2 ON (T1.c1=T2.c2 AND T2.c1 < 10)
> do not give correct results.

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