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https://issues.apache.org/jira/browse/HADOOP-4070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630344#action_12630344
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Ashish Thusoo commented on HADOOP-4070:
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cool...
Actually, could this be made a part of DDLWork instead of AdminWork and then it
can all be launched from the DDLTask. We have different DDL descriptors in DDL
Work for things like create/drop/alter tables and the functions could also
belong to that. Having a DDLFunctionsWork is also fine. I do think we should be
more specific than admin.
Also there is this whole thing of making this mapping persistent(both Raghu and
Prasad were mentioning that) so that they can be reused across sessions. Maybe
we can have that discussion here as well.
> [Hive] Provide a mechanism for registering UDFs from the query language
> -----------------------------------------------------------------------
>
> Key: HADOOP-4070
> URL: https://issues.apache.org/jira/browse/HADOOP-4070
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/hive
> Reporter: Tom White
> Attachments: hadoop-4070.patch
>
>
> UDFs (user defined functions) in Hive are currently actually built-in
> functions. This issue is to develop a packaging and registration mechanism so
> users can add their own functions at runtime.
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