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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11333) ColumnPruner prunes columns of UnionOperator that should be kept
Date Thu, 12 Nov 2015 02:13:12 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HIVE-11333:
------------------------------------

Should this issue be backported to branch-1? It looks like a bug.

> ColumnPruner prunes columns of UnionOperator that should be kept
> ----------------------------------------------------------------
>
>                 Key: HIVE-11333
>                 URL: https://issues.apache.org/jira/browse/HIVE-11333
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>             Fix For: 2.0.0
>
>         Attachments: HIVE-11333.01.patch, HIVE-11333.02.patch
>
>
> unionOperator will have the schema following the operator in the first branch. Because
ColumnPruner prunes columns based on the internal name, the column in other branches may be
pruned due to a different internal name from the first branch. To repro, run rcfile_union.q
with return path turned on.



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