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https://issues.apache.org/jira/browse/ARROW-16211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610986#comment-17610986
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Yaron Gvili commented on ARROW-16211:
-------------------------------------
Side note: I have developed PyArrow wrappers for the nested registries as part
of a prototype for UDFs that I should be able to contribute when the time comes.
I agree documentation of nested registries can be improved, both inside the
code and in doc pages. We do have a
[couple|https://github.com/apache/arrow/blob/902781d1f3a41563a23d6755433a8e40ce82de7b/cpp/src/arrow/compute/registry_test.cc#L119]
of [test
cases|https://github.com/apache/arrow/blob/902781d1f3a41563a23d6755433a8e40ce82de7b/cpp/src/arrow/compute/registry_test.cc#L213].
Please create jiras for what you think is missing.
> [C++][Python] Unregister compute functions
> ------------------------------------------
>
> Key: ARROW-16211
> URL: https://issues.apache.org/jira/browse/ARROW-16211
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: C++, Python
> Reporter: Vibhatha Lakmal Abeykoon
> Priority: Major
>
> In general, when using UDFs, the user defines a function expecting a
> particular outcome. When building the program, there needs to be a way to
> update existing function kernels if it expands beyond what is planned before.
> In such situations, there should be a way to remove the existing definition
> and add a new definition. To enable this, the unregister functionality has to
> be included.
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