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https://issues.apache.org/jira/browse/HIVE-4179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Navis updated HIVE-4179:
------------------------
Status: Open (was: Patch Available)
I've ran union_remove_* tests and found mapping information is missing for type
casting SEL operator, which is generated in
SemanticAnalyzer.genInputSelectForUnion().
Packing needed colExprMap seemed to fix some part of problems. Could you do
that?
> 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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