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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-7734) Join stats annotation rule is not updating columns statistics correctly
Date Thu, 14 Aug 2014 19:56:18 GMT
Prasanth J created HIVE-7734:
--------------------------------

             Summary: Join stats annotation rule is not updating columns statistics correctly
                 Key: HIVE-7734
                 URL: https://issues.apache.org/jira/browse/HIVE-7734
             Project: Hive
          Issue Type: Sub-task
    Affects Versions: 0.14.0
            Reporter: Prasanth J
            Assignee: Prasanth J


HIVE-7679 is not doing the correct thing. The scale down/up factor updating column stats was
wrong as ratio = newRowCount/oldRowCount is always infinite (oldRowCount = 0). The old row
count should be retrieved from parent corresponding to the current column whose statistics
is being updated.



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