Review Request 29753: Support split sampling for parallel order by

Thu, 08 Jan 2015 20:25:31 -0800 

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Review request for hive.


Bugs: HIVE-9210
    https://issues.apache.org/jira/browse/HIVE-9210


Repository: hive-git


Description
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Random sampling cannot sure it covers whole range of input data. See HIVE-7661


Diffs
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  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 8264b16 
  ql/src/java/org/apache/hadoop/hive/ql/exec/FetchOperator.java 0ccab02 
  ql/src/java/org/apache/hadoop/hive/ql/exec/PartitionKeySampler.java 96f4530 
  ql/src/java/org/apache/hadoop/hive/ql/exec/mr/ExecDriver.java 2227e6f 
  ql/src/java/org/apache/hadoop/hive/ql/plan/MapWork.java 9f8c091 
  ql/src/java/org/apache/hadoop/hive/ql/session/SessionState.java ac2cc86 
  ql/src/test/queries/clientpositive/parallel_orderby.q 73c3940 
  ql/src/test/results/clientpositive/parallel_orderby.q.out 2f4ac8f 

Diff: https://reviews.apache.org/r/29753/diff/


Testing
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Thanks,

Navis Ryu

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