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From Vineet Garg <>
Subject Re: Review Request 51006: CBO: Return path - Fix for converting GroupBy operator with no map side group by
Date Fri, 12 Aug 2016 18:18:57 GMT

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(Updated Aug. 12, 2016, 6:18 p.m.)

Review request for hive and Ashutosh Chauhan.

Bugs: HIVE-14396

Repository: hive-git


This patch fixes the following issues:
1. UDAF info collection was looking for wrong expression for a UDAF's parameter from HiveAggregate.
2. Converting HiveAggregate to GroupBy operator was creating wrong expressions for UDAF's
arguments based on underlying Reduce operator.

Diffs (updated)

  ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/ 774fc59 
  ql/src/test/queries/clientpositive/count.q 41ffaf2 
  ql/src/test/queries/clientpositive/groupby_ppr_multi_distinct.q 74bd2fd 
  ql/src/test/results/clientpositive/count.q.out c950c5b 
  ql/src/test/results/clientpositive/groupby_ppr_multi_distinct.q.out 33d1ed0 
  ql/src/test/results/clientpositive/spark/count.q.out b1ad662 
  ql/src/test/results/clientpositive/spark/groupby_ppr_multi_distinct.q.out 5251241 
  ql/src/test/results/clientpositive/tez/count.q.out 9fc2c75 



Added new tests and Pre-commit testing


Vineet Garg

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