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Posted to issues@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2020/05/25 15:05:00 UTC

[jira] [Commented] (ARROW-4530) [C++] Review Aggregate kernel state allocation/ownership semantics

    [ https://issues.apache.org/jira/browse/ARROW-4530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17116099#comment-17116099 ] 

Wes McKinney commented on ARROW-4530:
-------------------------------------

You may have noticed that the aggregation API was iterated in ARROW-8792. I think the current structure is adequate for non-hash-aggregations, but we should think about how to deal with implementing aggregations that can be used with hash aggregation (aka "GROUP BY")

> [C++] Review Aggregate kernel state allocation/ownership semantics
> ------------------------------------------------------------------
>
>                 Key: ARROW-4530
>                 URL: https://issues.apache.org/jira/browse/ARROW-4530
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Francois Saint-Jacques
>            Priority: Major
>              Labels: analytics
>




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