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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/09/13 19:56:00 UTC

[jira] [Assigned] (ARROW-13849) [C++] Add min and max aggregation functions

     [ https://issues.apache.org/jira/browse/ARROW-13849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li reassigned ARROW-13849:
--------------------------------

    Assignee: David Li

> [C++] Add min and max aggregation functions
> -------------------------------------------
>
>                 Key: ARROW-13849
>                 URL: https://issues.apache.org/jira/browse/ARROW-13849
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Neal Richardson
>            Assignee: David Li
>            Priority: Major
>              Labels: kernel
>             Fix For: 6.0.0
>
>
> We have min_max but that returns a struct array. At some point we will want compute kernels that we can call in a ProjectNode that will allow us to get at struct array elements, but for now it would be nice to have (hash_)min and max that just give the scalar we want.



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