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From "Ashutosh Chauhan" <hashut...@apache.org>
Subject Review Request 23404: Optimize for empty relation scans
Date Thu, 10 Jul 2014 23:25:58 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/23404/
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Review request for hive.


Bugs: HIVE-7385
    https://issues.apache.org/jira/browse/HIVE-7385


Repository: hive-git


Description
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Optimize for empty relation scans


Diffs
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  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 8bff2a9 
  itests/qtest/testconfiguration.properties f074b8e 
  ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyOptimizer.java 5bad2e5

  ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyTaskDispatcher.java
PRE-CREATION 
  ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/NullScanOptimizer.java PRE-CREATION

  ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/PhysicalOptimizer.java cf049b2

  ql/src/test/queries/clientpositive/optimize_nullscan.q PRE-CREATION 
  ql/src/test/results/clientpositive/optimize_nullscan.q.out PRE-CREATION 
  ql/src/test/results/clientpositive/tez/optimize_nullscan.q.out PRE-CREATION 

Diff: https://reviews.apache.org/r/23404/diff/


Testing
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added new tests.


Thanks,

Ashutosh Chauhan


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