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https://issues.apache.org/jira/browse/ARROW-16213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li updated ARROW-16213:
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Summary: [C++][Python] Generate scalar-argument kernel based on
array-argument kernel for UDFs (was: [C++][Python] Array-Scalar Kernel Usage
Improvement)
> [C++][Python] Generate scalar-argument kernel based on array-argument kernel
> for UDFs
> -------------------------------------------------------------------------------------
>
> Key: ARROW-16213
> URL: https://issues.apache.org/jira/browse/ARROW-16213
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: C++, Python
> Reporter: Vibhatha Lakmal Abeykoon
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Major
>
> When defining UDFs the ability to use a function on both scalar and array
> with a single function definition is important. Here using a function just
> written for array-like inputs on scalars is a vital component when providing
> better support. Further more, UDFs need to be consistent with the
> pre-registered functions in the function registry. Considering both usability
> and consistency, it is important to support this feature.
> This requirement was a part of discussion in Scalar UDF integration PR[1].
>
> References:
>
> [1]. https://github.com/apache/arrow/pull/12590#issuecomment-1089426784
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