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Posted to jira@arrow.apache.org by "Ian Cook (Jira)" <ji...@apache.org> on 2021/09/08 14:03:00 UTC

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

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

Ian Cook updated ARROW-12669:
-----------------------------
    Labels: types  (was: )

> [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: Eduardo Ponce
>            Priority: Major
>              Labels: types
>
> 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.



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