[jira] Created: (HIVE-1965) Auto convert mapjoin should not throw exception if the top operator is union operator.

[He Yongqiang (JIRA)]

Auto convert mapjoin should not throw exception if the top operator is union 
operator.
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                 Key: HIVE-1965
                 URL: https://issues.apache.org/jira/browse/HIVE-1965
             Project: Hive
          Issue Type: Bug
            Reporter: He Yongqiang




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