Jimmy Xiang created HIVE-9391:
---------------------------------
Summary: Spark doesn't obey setting hive.multigroupby.singlereducer
Key: HIVE-9391
URL: https://issues.apache.org/jira/browse/HIVE-9391
Project: Hive
Issue Type: Bug
Reporter: Jimmy Xiang
Assignee: Jimmy Xiang
Priority: Minor
Fix For: spark-branch
With hive.multigroupby.singlereducer set to true, Spark still generates plan
with multiple groupby reducers. For example, in working on HIVE-9378, I found,
for test groupby_complex_types_multi_single_reducer.q, we have plan like
{noformat}
+ Reducer 2 <- Map 6 (GROUP, 2)
+ Reducer 4 <- Map 7 (GROUP, 2)
{noformat}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
