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Date: Fri, 27 Feb 2009 11:11:15 -0800 (PST)
From: "Richard Lee (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Subject: [jira] Updated: (HIVE-309) FunctionRegistry should allow loading
 UDFs and UDAFs from property file
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     [ https://issues.apache.org/jira/browse/HIVE-309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richard Lee updated HIVE-309:
-----------------------------

    Attachment: hive-external-functions-2.diff

here's a diff off the same revision of trunk as my last one...
This implements the function definition syntax that I described in my previous comment.

> FunctionRegistry should allow loading UDFs and UDAFs from property file
> -----------------------------------------------------------------------
>
>                 Key: HIVE-309
>                 URL: https://issues.apache.org/jira/browse/HIVE-309
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Richard Lee
>         Attachments: hive-external-functions-2.diff, hive-external-functions.diff
>
>
> FunctionRegistry.java hard code all UDF, UDAF definitions in a static initializer.  There is no way to add new functions without directly modifying this file.  
> FunctionRegistry SHOULD look for a property file in which new functions and their implementations can be specified.  This will allow third parties to extend hive without maintaining patches against the codebase. 

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