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https://issues.apache.org/jira/browse/ARROW-13289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17377553#comment-17377553
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David Li commented on ARROW-13289:
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Ah, sorry, during the review for either trig or log functions it was questioned
whether having integer variants was useful, so I removed them. Maybe I can have
it auto-promote integer arguments to floating point ones?
> [C++] Log functions don't have int kernels
> ------------------------------------------
>
> Key: ARROW-13289
> URL: https://issues.apache.org/jira/browse/ARROW-13289
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Nic Crane
> Priority: Major
>
> I've been writing R bindings for the log functions implemented in this PR:
> [https://github.com/apache/arrow/pull/10567]
> They work when the inputs are floats, but when the input is an int32 I get
> the following error:
> {code:java}
> NotImplemented: Function ln_checked has no kernel matching input types
> (scalar[int32]){code}
>
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