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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2015/04/19 02:45:58 UTC
[jira] [Commented] (HIVE-10375) CBO (Calcite Return Path): disable
the identity project remover for some union operators
[ https://issues.apache.org/jira/browse/HIVE-10375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14501649#comment-14501649 ]
Pengcheng Xiong commented on HIVE-10375:
----------------------------------------
resolved in HIVE-10386
> CBO (Calcite Return Path): disable the identity project remover for some union operators
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-10375
> URL: https://issues.apache.org/jira/browse/HIVE-10375
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Fix For: 1.2.0
>
> Attachments: HIVE-10375.01.patch
>
>
> The identity project remover will remove the "Project" operator that is required by some Union Operators. A temporary solution is to disable it for them.
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