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https://issues.apache.org/jira/browse/DRILL-3988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16637809#comment-16637809
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ASF GitHub Bot commented on DRILL-3988:
---------------------------------------

kkhatua commented on issue #1483: DRILL-3988: Expose Drill built-in functions & 
UDFs  in a system table
URL: https://github.com/apache/drill/pull/1483#issuecomment-426881847
 
 
   @kfaraaz  these re unit tests, so we're not using the SQL interface to add 
or remove UDF jars. It's primarily testing the APIs. Existing functional tests 
should be covering that.  

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> Create a sys.functions table to expose available Drill functions
> ----------------------------------------------------------------
>
>                 Key: DRILL-3988
>                 URL: https://issues.apache.org/jira/browse/DRILL-3988
>             Project: Apache Drill
>          Issue Type: Sub-task
>          Components: Metadata
>            Reporter: Jacques Nadeau
>            Assignee: Kunal Khatua
>            Priority: Major
>              Labels: doc-impacting
>             Fix For: 1.15.0
>
>
> Create a new sys.functions table that returns a list of all available 
> functions.
> Key considerations: 
> - one row per name or one per argument set. I'm inclined to latter so people 
> can use queries to get to data.
> - we need to create a delineation between user functions and internal 
> functions and only show user functions. 'CastInt' isn't something the user 
> should be able to see (or run).
> - should we add a description annotation that could be included in the 
> sys.functions table?



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