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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2017/04/26 18:01:04 UTC

[jira] [Created] (HIVE-16541) PTF: Avoid shuffling constant keys for empty OVER()

Gopal V created HIVE-16541:
------------------------------

             Summary: PTF: Avoid shuffling constant keys for empty OVER()
                 Key: HIVE-16541
                 URL: https://issues.apache.org/jira/browse/HIVE-16541
             Project: Hive
          Issue Type: Bug
          Components: PTF-Windowing
    Affects Versions: 3.0.0
            Reporter: Gopal V
            Assignee: Gopal V


Generating surrogate keys with 

{code}
select row_number() over() as p_key, * from table; 
{code}

uses a sorted edge with "0 ASC NULLS FIRST" as the sort order.



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