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