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From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-17976) HoS: don't set output collector if there's no data to process
Date Fri, 03 Nov 2017 11:27:00 GMT
Rui Li created HIVE-17976:
-----------------------------

             Summary: HoS: don't set output collector if there's no data to process
                 Key: HIVE-17976
                 URL: https://issues.apache.org/jira/browse/HIVE-17976
             Project: Hive
          Issue Type: Bug
          Components: Spark
            Reporter: Rui Li
            Assignee: Rui Li
            Priority: Minor


MR doesn't set an output collector if no row is processed, i.e. {{ExecMapper::map}} is never
called. Let's investigate whether Spark should do the same.



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