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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2014/10/12 03:35:35 UTC

[jira] [Created] (HIVE-8435) Add identity project remover optimization

Ashutosh Chauhan created HIVE-8435:
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             Summary: Add identity project remover optimization
                 Key: HIVE-8435
                 URL: https://issues.apache.org/jira/browse/HIVE-8435
             Project: Hive
          Issue Type: New Feature
          Components: Logical Optimizer
    Affects Versions: 0.13.0, 0.12.0, 0.11.0, 0.10.0, 0.9.0
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


In some cases there is an identity project in plan which is useless. Better to optimize it away to avoid evaluating it without any benefit at runtime.



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