[HIVE-5118] hive.groupby.skewindata not merge the middle result

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.11.0
• Component/s: Query Processor

Environment

ubuntu12.04,hive-0.11.0,hadoop1.02

• Assignee: Unassigned
• Reporter: mylinyuzhi
• Created: 19/Aug/13 03:19
• Updated: 19/Aug/13 03:19

Description

set hive.groupby.skewindata=true;
select count(distinct uid) as uid,type from test
where dt='20130818 
group by type;

just one job.not merge the middle result.
the output like:
100 1
200 2
300 1
400 2

it should be:
400 1
600 2