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Posted to dev@hive.apache.org by "Laljo John Pullokkaran (JIRA)" <ji...@apache.org> on 2015/02/12 03:58:11 UTC

[jira] [Created] (HIVE-9663) GroupBy Optimization

Laljo John Pullokkaran created HIVE-9663:
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             Summary: GroupBy Optimization
                 Key: HIVE-9663
                 URL: https://issues.apache.org/jira/browse/HIVE-9663
             Project: Hive
          Issue Type: Bug
            Reporter: Laljo John Pullokkaran
            Assignee: Laljo John Pullokkaran


It seems like GB op for every tuple while handling grouping sets performs unnecessary computations.



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