Review Request 25395: HIVE-7990: With fetch column stats disabled number of elements in grouping set is not taken into account

[j . prasanth . j]

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Review request for hive, Ashutosh Chauhan, Gunther Hagleitner, and Harish 
Butani.


Bugs: HIVE-7990
    https://issues.apache.org/jira/browse/HIVE-7990


Repository: hive-git


Description
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see jira


Diffs
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ql/src/java/org/apache/hadoop/hive/ql/optimizer/stats/annotation/StatsRulesProcFactory.java
 01c1d30 
  ql/src/test/queries/clientpositive/annotate_stats_groupby.q e8e84c6 
  ql/src/test/results/clientpositive/annotate_stats_groupby.q.out 9c37d9b 
  ql/src/test/results/clientpositive/groupby_cube1.q.out 4246744 
  ql/src/test/results/clientpositive/groupby_grouping_sets2.q.out 1cd65f6 
  ql/src/test/results/clientpositive/groupby_grouping_sets3.q.out f1ecbb4 
  ql/src/test/results/clientpositive/groupby_rollup1.q.out 5db5cd5 

Diff: https://reviews.apache.org/r/25395/diff/


Testing
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Thanks,

Prasanth_J