Chun Chen created HIVE-5357:
-------------------------------
Summary: ReduceSinkDeDuplication optimizer pick the wrong keys in
pRS-cGBYm-cRS-cGBYr scenario when there are distinct keys in child GBY
Key: HIVE-5357
URL: https://issues.apache.org/jira/browse/HIVE-5357
Project: Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.11.0
Reporter: Chun Chen
Assignee: Chun Chen
Fix For: 0.12.0
{code}
select key, count(distinct value) from (select key, value from src group by
key, value) t group by key;
//result
0 0 NULL
10 10 NULL
100 100 NULL
103 103 NULL
104 104 NULL
{code}
Obviously the result is wrong.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
