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From "Swarnim Kulkarni (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3378) UDF to obtain the numeric day of an year from date or timestamp in HIVE.
Date Thu, 09 Apr 2015 20:39:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14488228#comment-14488228
] 

Swarnim Kulkarni commented on HIVE-3378:
----------------------------------------

[~apivovarov] Left a few comments on the review. In my opinion, the implementation feels a
little complicated. First of all, may be I am missing something, but why do we need to extend
a GenericUDF and not a simple UDF? Can't we have an implementation similar to the dayofmonth[1]?

[1] https://github.com/cloudera/hive/blob/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFDayOfMonth.java

>  	UDF to obtain the numeric day of an year from date or timestamp in  HIVE. 
> ----------------------------------------------------------------------------
>
>                 Key: HIVE-3378
>                 URL: https://issues.apache.org/jira/browse/HIVE-3378
>             Project: Hive
>          Issue Type: New Feature
>          Components: UDF
>    Affects Versions: 0.8.1, 0.9.0
>            Reporter: Deepti Antony
>            Assignee: Alexander Pivovarov
>         Attachments: HIVE-3378.02.patch, HIVE-3378.02.patch, HIVE-3378.1.patch.txt
>
>
>   Hive current releases lacks a function which returns the numeric day of an year if
a date or timestamp is given .The function DAYOFYEAR(date) would return the numeric day  from
a date / timestamp or  which would be useful while using HiveQL.DAYOFYEAR can be used to compare
 data with respect to number of days till the given date.It can be used in different domains.



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