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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2016/07/13 16:17:20 UTC

[jira] [Created] (HIVE-14228) Better row count estimates for outer join during physical planning

Ashutosh Chauhan created HIVE-14228:
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             Summary: Better row count estimates for outer join during physical planning
                 Key: HIVE-14228
                 URL: https://issues.apache.org/jira/browse/HIVE-14228
             Project: Hive
          Issue Type: Improvement
          Components: Physical Optimizer
    Affects Versions: 2.1.0, 2.0.0, 1.2.0
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


Currently, row counts for all join types are estimated as if they are outer join. We need to update that logic to take into account different join types.



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