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https://issues.apache.org/jira/browse/ARROW-15635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17489904#comment-17489904
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Weston Pace commented on ARROW-15635:
-------------------------------------

Can you add some scope to this?  Are you planning on tackling all types of UDFs 
(e.g. scalar, vector, aggregate, post-aggregate, etc.) in this one JIRA and 
those will be subtasks?  Or is this JIRA to aim for a specific type of UDF 
first?

> [C++][Python] UDF Integration 
> ------------------------------
>
>                 Key: ARROW-15635
>                 URL: https://issues.apache.org/jira/browse/ARROW-15635
>             Project: Apache Arrow
>          Issue Type: Task
>          Components: C++, Python
>            Reporter: Vibhatha Lakmal Abeykoon
>            Assignee: Vibhatha Lakmal Abeykoon
>            Priority: Major
>
> The objective is to list down a set of tasks required to provide UDF support 
> for Apache Arrow streaming execution engine. In the first iteration we will 
> be focusing on providing support for Python-based UDFs which can support 
> Python functions. 



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