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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2015/03/03 02:43:06 UTC

[jira] [Created] (HIVE-9835) [CBO] Add a rule to insert exchange operator in front of group by in calcite tree

Ashutosh Chauhan created HIVE-9835:
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             Summary: [CBO] Add a rule to insert exchange operator in front of group by in calcite tree
                 Key: HIVE-9835
                 URL: https://issues.apache.org/jira/browse/HIVE-9835
             Project: Hive
          Issue Type: Task
          Components: CBO
    Affects Versions: cbo-branch
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


Takes into account map side aggregation.



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