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From "Vikram Dixit K (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8647) HIVE-8186 causes addition of same child operator multiple times
Date Wed, 29 Oct 2014 17:58:35 GMT
Vikram Dixit K created HIVE-8647:
------------------------------------

             Summary: HIVE-8186 causes addition of same child operator multiple times
                 Key: HIVE-8647
                 URL: https://issues.apache.org/jira/browse/HIVE-8647
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.14.0
            Reporter: Vikram Dixit K
            Assignee: Vikram Dixit K
            Priority: Critical


With HIVE-8186, the same child operator ends up getting added multiple times to the map operator
when processing multiple files for the same alias in the map task. 

I believe we should also eliminate having so many mapOpCtx for the same child operator and
instead should have only 1 per alias. However, that looks like a big change that may not be
needed before 0.14 goes out.



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