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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4214) OVER accepts general expression instead of just function
Date Thu, 21 Mar 2013 18:57:17 GMT
Alan Gates created HIVE-4214:
--------------------------------

             Summary: OVER accepts general expression instead of just function
                 Key: HIVE-4214
                 URL: https://issues.apache.org/jira/browse/HIVE-4214
             Project: Hive
          Issue Type: Bug
          Components: PTF-Windowing
    Affects Versions: 0.11.0
            Reporter: Alan Gates


The query:

select s, i, avg(d) / 10.0 over (partition by s order by i) from over100k;

runs (and produces meaningless output).

Over should not allow the arithmetic expression.  Only a UDAF or PTF function should be valid
there.  The correct way to write this query should be 

select s, i, avg(d) over (partition by s order by i) / 10. 0 from over100k;



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