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Posted to issues@trafodion.apache.org by "Alice Chen (JIRA)" <ji...@apache.org> on 2015/07/22 20:17:59 UTC

[jira] [Created] (TRAFODION-734) LP Bug: 1388918 - Row count derived from HFiles not used in cardinality estimation

Alice Chen created TRAFODION-734:
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             Summary: LP Bug: 1388918 - Row count derived from HFiles not used in cardinality estimation
                 Key: TRAFODION-734
                 URL: https://issues.apache.org/jira/browse/TRAFODION-734
             Project: Apache Trafodion
          Issue Type: Bug
            Reporter: Barry Fritchman
            Assignee: Barry Fritchman


When NATable::originalCardinality_ is set from the result of estimateRowCount(), in the absence of statistics the optimizer's cardinality estimation code uses the default row count instead of the value assigned to the member variable.



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