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Posted to dev@hive.apache.org by "Anand L Ranganathan (JIRA)" <ji...@apache.org> on 2013/02/09 21:23:14 UTC

[jira] [Updated] (HIVE-3850) hour() function returns 12 hour clock value when using timestamp datatype

     [ https://issues.apache.org/jira/browse/HIVE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anand L Ranganathan updated HIVE-3850:
--------------------------------------

    Attachment: hive-3850.patch
    
> 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.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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