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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2017/08/23 22:20:00 UTC

[jira] [Created] (HIVE-17378) CBO: HiveReduceExpressionsWithStatsRule can operate on IS_NULL and IS_NOT_NULL

Gopal V created HIVE-17378:
------------------------------

             Summary: CBO: HiveReduceExpressionsWithStatsRule can operate on IS_NULL and IS_NOT_NULL
                 Key: HIVE-17378
                 URL: https://issues.apache.org/jira/browse/HIVE-17378
             Project: Hive
          Issue Type: Bug
          Components: CBO
    Affects Versions: 3.0.0
            Reporter: Gopal V


{code}
 * Currently we support the simplification of =, >=, <=, >, <, and
 * IN operations.
 */
{code}

IS_NULL and IS_NOT_NULL are closely related and can be processed by this rule.



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