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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4174) Round UDF converts BigInts to double
Date Wed, 03 Apr 2013 08:45:43 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Namit Jain updated HIVE-4174:
-----------------------------

      Resolution: Fixed
    Hadoop Flags: Incompatible change,Reviewed  (was: Incompatible change)
          Status: Resolved  (was: Patch Available)

Committed. Thanks Chen Chun
                
> Round UDF converts BigInts to double
> ------------------------------------
>
>                 Key: HIVE-4174
>                 URL: https://issues.apache.org/jira/browse/HIVE-4174
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 0.10.0
>            Reporter: Mark Grover
>            Assignee: Mark Grover
>             Fix For: 0.11.0
>
>         Attachments: hive.4174.1.patch-nohcat, HIVE-4174.1.patch.txt, HIVE-4174.D9687.1.patch
>
>
> Chen Chun pointed out on the hive-user mailing list that round() in Hive 0.10 returns
> {code}
> select round(cast(1234560 as BIGINT)), round(cast(12345670 as BIGINT)) from test limit
1;
> //hive 0.10
> 1234560.0  1.234567E7
> {code}
> This is not consistent with MySQL(http://dev.mysql.com/doc/refman/5.1/en/mathematical-functions.html#function_round)
> which quotes
> {code}
> The return type is the same type as that of the first argument (assuming that it is integer,
double, or decimal). This means that for an integer argument, the result is an integer (no
decimal places)
> {code}

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