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Posted to issues@trafodion.apache.org by "Qifan Chen (JIRA)" <ji...@apache.org> on 2015/11/12 16:03:11 UTC

[jira] [Created] (TRAFODION-1618) Row count estimation method used in Update stats can be improved

Qifan Chen created TRAFODION-1618:
-------------------------------------

             Summary: Row count estimation method used in Update stats can be improved
                 Key: TRAFODION-1618
                 URL: https://issues.apache.org/jira/browse/TRAFODION-1618
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Qifan Chen


For a customer table, the row count is estimated as 2343750004, while the actual row account is 25055150. 





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