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https://issues.apache.org/jira/browse/ARROW-6947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16971263#comment-16971263
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Kyle McCarthy edited comment on ARROW-6947 at 11/11/19 12:25 AM:
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I would like to provide some assistance with implementing UDFs. Is the idea to 
implement them similarly to gandiva and generate LLVM IR or WebAssembly? Or to 
take a different approach and provide a trait for users to implement for their 
UDF and then register?


was (Author: kylemccarthy):
I would like to provide some assistance with implementing UDFs. Is the idea to 
implement them similarly to gandiva and generate LLVM IR or WebAssembly? Or to 
provide a trait for users to implement for their UDF and then register?

> [Rust] [DataFusion] Add support for scalar UDFs
> -----------------------------------------------
>
>                 Key: ARROW-6947
>                 URL: https://issues.apache.org/jira/browse/ARROW-6947
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Rust, Rust - DataFusion
>            Reporter: Andy Grove
>            Assignee: Andy Grove
>            Priority: Major
>
> As a user, I would like to be able to define my own functions and then use 
> them in SQL statements.
>  



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