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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2015/11/03 20:01:27 UTC

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

Ashutosh Chauhan created HIVE-12325:
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             Summary: 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. 



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