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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-13260) ReduceSinkDeDuplication throws exception when pRS key is empty
Date Thu, 10 Mar 2016 21:12:40 GMT
Pengcheng Xiong created HIVE-13260:
--------------------------------------

             Summary: ReduceSinkDeDuplication throws exception when pRS key is empty
                 Key: HIVE-13260
                 URL: https://issues.apache.org/jira/browse/HIVE-13260
             Project: Hive
          Issue Type: Sub-task
            Reporter: Pengcheng Xiong
            Assignee: Pengcheng Xiong


Steps to reproduce:
{code}
set hive.mapred.mode=nonstrict;
set hive.cbo.enable=false;

set hive.map.aggr=false;

set hive.groupby.skewindata=false;
set mapred.reduce.tasks=31;

select compute_stats(a,16),compute_stats(b,16),compute_stats(c,16),compute_stats(d,16)
from
(
select
  avg(DISTINCT substr(src.value,5)) as a,
  max(substr(src.value,5)) as b,
  variance(substr(src.value,5)) as c,
  var_samp(substr(src.value,5)) as d
 from src)subq;
{code}



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