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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2015/04/17 06:45:59 UTC

[jira] [Assigned] (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:all-tabpanel ]

Pengcheng Xiong reassigned HIVE-10375:
--------------------------------------

    Assignee: Pengcheng Xiong

> 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
>
>
> 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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