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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8667) CBO: optimize_nullscan - some TableScans for nullscans appeared after CBO
Date Thu, 30 Oct 2014 03:03:33 GMT
Sergey Shelukhin created HIVE-8667:
--------------------------------------

             Summary: CBO: optimize_nullscan - some TableScans for nullscans appeared after
CBO
                 Key: HIVE-8667
                 URL: https://issues.apache.org/jira/browse/HIVE-8667
             Project: Hive
          Issue Type: Sub-task
          Components: CBO
            Reporter: Sergey Shelukhin
            Assignee: Gunther Hagleitner


Looks like some rewriting by CBO prevents nullscans from being optimized.




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