[jira] [Commented] (HIVE-4214) OVER accepts general expression instead of just function

["Alan Gates (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-4214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609307#comment-13609307 ] 

Alan Gates commented on HIVE-4214:
----------------------------------

When the query is re-written to properly put the / 10.0 after the OVER, it fails with:

{code}
NoViableAltException(15@[129:7: ( ( ( KW_AS )? identifier ) | ( KW_AS LPAREN identifier ( COMMA identifier )* RPAREN ) )?])
{code}
                
> 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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