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Date: Mon, 11 Nov 2013 21:03:17 +0000 (UTC)
From: "Ashutosh Chauhan (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HIVE-5731) Use new GenericUDF instead of basic
 UDF for UDFDate* classes
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    [ https://issues.apache.org/jira/browse/HIVE-5731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13819384#comment-13819384 ] 

Ashutosh Chauhan commented on HIVE-5731:
----------------------------------------

[~kamrul] Can you also refresh RB with latest patch?

> Use new GenericUDF instead of basic UDF for UDFDate* classes 
> -------------------------------------------------------------
>
>                 Key: HIVE-5731
>                 URL: https://issues.apache.org/jira/browse/HIVE-5731
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Mohammad Kamrul Islam
>            Assignee: Mohammad Kamrul Islam
>         Attachments: HIVE-5731.1.patch, HIVE-5731.2.patch, HIVE-5731.3.patch, HIVE-5731.4.patch, HIVE-5731.5.patch
>
>
> GenericUDF class is the latest and recommended base class for any UDFs.
> This JIRA is to change the current UDFDate* classes extended from GenericUDF.
> The general benefit of GenericUDF is described in comments as
> "* The GenericUDF are superior to normal UDFs in the following ways: 1. It can
>     accept arguments of complex types, and return complex types. 2. It can accept
>     variable length of arguments. 3. It can accept an infinite number of function
>     signature - for example, it's easy to write a GenericUDF that accepts
>     array<int>, array<array<int>> and so on (arbitrary levels of nesting). 4. It
>     can do short-circuit evaluations using DeferedObject."



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