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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4179) NonBlockingOpDeDup does not merge SEL operators correctly
Date Tue, 26 Mar 2013 22:35:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gunther Hagleitner updated HIVE-4179:
-------------------------------------

    Priority: Critical  (was: Major)
    
> NonBlockingOpDeDup does not merge SEL operators correctly
> ---------------------------------------------------------
>
>                 Key: HIVE-4179
>                 URL: https://issues.apache.org/jira/browse/HIVE-4179
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>            Priority: Critical
>             Fix For: 0.11.0
>
>         Attachments: HIVE-4179.1.patch, HIVE-4179.2.patch
>
>
> The input columns list for SEL operations isn't merged properly in the optimization.
The best way to see this is running union_remove_22.q with -Dhadoop.mr.rev=23. The plan shows
lost UDFs and a broken lineage for one column.
> Note: union_remove tests do not run on hadoop 1 or 0.20.

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