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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2016/03/28 10:59:25 UTC

[jira] [Updated] (HIVE-12325) Turn hive.map.groupby.sorted on by default

     [ https://issues.apache.org/jira/browse/HIVE-12325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lefty Leverenz updated HIVE-12325:
----------------------------------
    Labels:   (was: TODOC2.0)

> Turn hive.map.groupby.sorted on by default
> ------------------------------------------
>
>                 Key: HIVE-12325
>                 URL: https://issues.apache.org/jira/browse/HIVE-12325
>             Project: Hive
>          Issue Type: Improvement
>          Components: Logical Optimizer
>            Reporter: Ashutosh Chauhan
>            Assignee: Chetna Chaudhari
>             Fix For: 2.0.0
>
>         Attachments: HIVE-12325.1.patch
>
>
> When applicable it can avoid shuffle phase altogether for group by, which will be a performance win. 



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