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Posted to jira@arrow.apache.org by "David Sherrier (Jira)" <ji...@apache.org> on 2020/10/04 18:27:00 UTC

[jira] [Commented] (ARROW-9843) [C++] Implement Between trinary kernel

    [ https://issues.apache.org/jira/browse/ARROW-9843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17207712#comment-17207712 ] 

David Sherrier commented on ARROW-9843:
---------------------------------------

I am interested in working on this issue and have a couple of questions on implementation details.  I took a look at the compare kernel and based on that I would expect this to be a Scalar kernel with input array, scalar, scalar, and output of boolean filter?  The main question I have otherwise is how AND operation would look and by multiple scans are there any more details I am missing?

Thanks,

David

> [C++] Implement Between trinary kernel
> --------------------------------------
>
>                 Key: ARROW-9843
>                 URL: https://issues.apache.org/jira/browse/ARROW-9843
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>
> A specialized {{between(arr, left_bound, right_bound)}} kernel would multiple scans and AND operation



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