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Posted to dev@hive.apache.org by "mylinyuzhi (JIRA)" <ji...@apache.org> on 2013/08/19 05:20:47 UTC

[jira] [Created] (HIVE-5118) hive.groupby.skewindata not merge the middle result

mylinyuzhi created HIVE-5118:
--------------------------------

             Summary: hive.groupby.skewindata not merge the middle result
                 Key: HIVE-5118
                 URL: https://issues.apache.org/jira/browse/HIVE-5118
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.11.0
         Environment: ubuntu12.04,hive-0.11.0,hadoop1.02
            Reporter: mylinyuzhi


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





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