[jira] [Updated] (ARROW-14592) [C++] list_parent_indices output type should not depend on input type

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-14592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-14592:
-----------------------------------
    Labels: good-first-issue kernel pull-request-available  (was: good-first-issue kernel)

> [C++] list_parent_indices output type should not depend on input type
> ---------------------------------------------------------------------
>
>                 Key: ARROW-14592
>                 URL: https://issues.apache.org/jira/browse/ARROW-14592
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>            Reporter: Antoine Pitrou
>            Assignee: Jeroen van Straten
>            Priority: Minor
>              Labels: good-first-issue, kernel, pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, the {{list_parent_indices}} output type is the input list offset type. But that doesn't really make sense: the parent indices are simply indices in the list array, they are not bounded by the offset size (even a list array with 32-bit offsets can have a length larger than 2**32, for example if it's mostly nulls).



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