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https://issues.apache.org/jira/browse/ARROW-12745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17347870#comment-17347870
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Eduardo Ponce commented on ARROW-12745:
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These are special cases of the *round* kernels, refer to ARROW-12744
> [C++][Compute] Add floor and ceiling kernels
> --------------------------------------------
>
> Key: ARROW-12745
> URL: https://issues.apache.org/jira/browse/ARROW-12745
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Ian Cook
> Priority: Major
>
> Kernels to round each value in an array of floating point numbers to:
> * the nearest integer less than or equal to it ({{floor}})
> * the nearest integer greater than or equal to it ({{ceiling}})
> Should return an array of the same type as the input (not an integer type)
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