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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4179) NonBlockingOpDeDup does not merge SEL operators correctly
Date Tue, 02 Apr 2013 08:03:17 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619609#comment-13619609
] 

Gunther Hagleitner commented on HIVE-4179:
------------------------------------------

Oh - yes, I think you're result is right. The ones you list are still failing because of mismatch
with the golden file (fixed in other patches). 10, 12 and 13 actually get an exception before
they even get to the diff with golden file.
                
> 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, HIVE-4179.3.patch, HIVE-4179.4.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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