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https://issues.apache.org/jira/browse/HIVE-6167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898552#comment-13898552
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Ashutosh Chauhan commented on HIVE-6167:
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Patch looks good. I have one question tho. Earlier, function names were
identifier. I assume DOT can be part of an identifier. If so, than can it be a
problem now if some one who has earlier created a function name with dot in it,
may now confuse Hive.
> Allow user-defined functions to be qualified with database name
> ---------------------------------------------------------------
>
> Key: HIVE-6167
> URL: https://issues.apache.org/jira/browse/HIVE-6167
> Project: Hive
> Issue Type: Sub-task
> Components: UDF
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-6167.1.patch, HIVE-6167.2.patch, HIVE-6167.3.patch,
> HIVE-6167.4.patch
>
>
> Function names in Hive are currently unqualified and there is a single
> namespace for all function names. This task would allow users to define
> temporary UDFs (and eventually permanent UDFs) with a database name, such as:
> CREATE TEMPORARY FUNCTION userdb.myfunc 'myudfclass';
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