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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3850) hour() function returns 12 hour clock value when using timestamp datatype
Date Thu, 04 Apr 2013 23:40:47 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623023#comment-13623023
] 

Hudson commented on HIVE-3850:
------------------------------

Integrated in Hive-trunk-hadoop2 #138 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/138/])
    HIVE-3850 : hour() function returns 12 hour clock value when using timestamp datatype
(Anandha and Franklin via Ashutosh Chauhan) (Revision 1462988)

     Result = FAILURE
hashutosh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1462988
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFHour.java
* /hive/trunk/ql/src/test/queries/clientpositive/udf_hour.q
* /hive/trunk/ql/src/test/results/clientpositive/udf_hour.q.out

                
> hour() function returns 12 hour clock value when using timestamp datatype
> -------------------------------------------------------------------------
>
>                 Key: HIVE-3850
>                 URL: https://issues.apache.org/jira/browse/HIVE-3850
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 0.9.0, 0.10.0
>            Reporter: Pieterjan Vriends
>             Fix For: 0.11.0
>
>         Attachments: hive-3850_1.patch, HIVE-3850.patch.txt
>
>
> Apparently UDFHour.java does have two evaluate() functions. One that does accept a Text
object as parameter and one that does use a TimeStampWritable object as parameter. The first
function does return the value of Calendar.HOUR_OF_DAY and the second one of Calendar.HOUR.
In the documentation I couldn't find any information on the overload of the evaluation function.
I did spent quite some time finding out why my statement didn't return a 24 hour clock value.
> Shouldn't both functions return the same?

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