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From "Richard Lee (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-309) FunctionRegistry should allow loading UDFs and UDAFs from property file
Date Wed, 01 Apr 2009 03:04:50 GMT

     [ 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-functions4.diff

I forgot to svn add a couple files in my previous diff... so the test cases didn't make it
in. this one should fix that.
added some garbage entries into the properties file to verify that broken entries get ignored.

> 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, hive-external-functions2.diff,
hive-external-functions3.diff, hive-external-functions4.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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