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Date: Thu, 21 Mar 2013 18:57:17 +0000 (UTC)
From: "Alan Gates (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12638345.1363892205064.29030.1363892237103@arcas>
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Subject: [jira] [Created] (HIVE-4214) OVER accepts general expression
 instead of just function
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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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