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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2016/11/16 22:08:58 UTC

[jira] [Updated] (HIVE-10901) Optimize multi column distinct queries

     [ https://issues.apache.org/jira/browse/HIVE-10901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pengcheng Xiong updated HIVE-10901:
-----------------------------------
    Summary: Optimize  multi column distinct queries   (was: Optimize  mutli column distinct queries )

> Optimize  multi column distinct queries 
> ----------------------------------------
>
>                 Key: HIVE-10901
>                 URL: https://issues.apache.org/jira/browse/HIVE-10901
>             Project: Hive
>          Issue Type: New Feature
>          Components: CBO, Logical Optimizer
>    Affects Versions: 1.2.0
>            Reporter: Mostafa Mokhtar
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-10901.02.patch, HIVE-10901.03.patch, HIVE-10901.04.patch, HIVE-10901.patch
>
>
> HIVE-10568 is useful only when there is a distinct on one column. It can be expanded for multiple column cases too.



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