[jira] [Resolved] (ARROW-12669) [C++] Kernel to return Array of elements at index of list in ListArray

["David Li (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-12669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li resolved ARROW-12669.
------------------------------
    Resolution: Fixed

Issue resolved by pull request 11159
[https://github.com/apache/arrow/pull/11159]

> [C++] Kernel to return Array of elements at index of list in ListArray
> ----------------------------------------------------------------------
>
>                 Key: ARROW-12669
>                 URL: https://issues.apache.org/jira/browse/ARROW-12669
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Ian Cook
>            Assignee: Percy Camilo Triveño Aucahuasi
>            Priority: Critical
>              Labels: Kernels, kernel, pull-request-available, types
>             Fix For: 6.0.0
>
>          Time Spent: 15h 40m
>  Remaining Estimate: 0h
>
> It would be useful to have a compute function that takes a {{ListArray<list<type>>}} and an integer index {{n}} and returns an {{Array<type>}} containing the {{n}} th item from each list.
> This would be useful in combination with existing functions that return list-type output, for example the string splitting functions.
> Let's please ensure that this also works on fixed size list.



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