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Posted to issues@trafodion.apache.org by "David Wayne Birdsall (JIRA)" <ji...@apache.org> on 2015/11/30 23:12:11 UTC

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

     [ https://issues.apache.org/jira/browse/TRAFODION-1618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Wayne Birdsall reassigned TRAFODION-1618:
-----------------------------------------------

    Assignee: David Wayne Birdsall

> 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
>            Assignee: David Wayne Birdsall
>
> For a customer table, the row count is estimated as 2343750004, while the actual row account is 25055150. 



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