[
https://issues.apache.org/jira/browse/HIVE-12325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14992263#comment-14992263
]
Ashutosh Chauhan commented on HIVE-12325:
-----------------------------------------
Actually we should remove test config. I dont see any value of it. We should
just have one config to turn on/off the optimization.
> 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
>
> When applicable it can avoid shuffle phase altogether for group by, which
> will be a performance win.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
