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From "Zhiyuan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-18064) Hive on Tez parallel order by
Date Tue, 14 Nov 2017 21:28:00 GMT
Zhiyuan Yang created HIVE-18064:
-----------------------------------

             Summary: Hive on Tez parallel order by
                 Key: HIVE-18064
                 URL: https://issues.apache.org/jira/browse/HIVE-18064
             Project: Hive
          Issue Type: Bug
            Reporter: Zhiyuan Yang
            Assignee: Zhiyuan Yang


We've built parallel sorting in TEZ-3837. It does sampling as output is generated and figure
out a range partitioner for shuffle edge. Each reducer output a sorted span. This is mainly
for external consumption since output files need to be read in certain order.



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