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https://issues.apache.org/jira/browse/ARROW-15152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17494757#comment-17494757
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Dhruv Vats commented on ARROW-15152:
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It isn't super obvious to me what is being asked. Could someone give an example
of sorts? That'll be very helpful.
> Implement a `hash_list` aggregate function.
> -------------------------------------------
>
> Key: ARROW-15152
> URL: https://issues.apache.org/jira/browse/ARROW-15152
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++, Python
> Affects Versions: 6.0.1
> Reporter: A. Coady
> Assignee: Dhruv Vats
> Priority: Major
> Labels: good-second-issue, kernel
>
> For more advanced aggregations, it's helpful to be able to gather the grouped
> values into a list array. Pandas and Polars both have that feature. And
> `hash_distinct` already aggregates to lists, so all the building blocks are
> there.
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