[jira] Commented: (HIVE-309) FunctionRegistry should allow loading UDFs and UDAFs from property file

["Zheng Shao (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677258#action_12677258 ] 

Zheng Shao commented on HIVE-309:
---------------------------------

Thanks Richard.

It seems you also removed displayName, and set isOperator always to false.

Is it possible to keep those 2 parameters?


> 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.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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