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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/09/21 17:00:00 UTC
[jira] [Assigned] (ARROW-12063) [C++] Add nulls position option to
sort functions
[ https://issues.apache.org/jira/browse/ARROW-12063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou reassigned ARROW-12063:
--------------------------------------
Assignee: Antoine Pitrou
> [C++] Add nulls position option to sort functions
> -------------------------------------------------
>
> Key: ARROW-12063
> URL: https://issues.apache.org/jira/browse/ARROW-12063
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 3.0.0
> Reporter: Ian Cook
> Assignee: Antoine Pitrou
> Priority: Major
> Fix For: 6.0.0
>
>
> Currently in the [sort functions|https://arrow.apache.org/docs/cpp/compute.html#sorts-and-partitions], nulls are considered greater than any other value and are sorted at the the end of the array. Add an option to enable users to sort nulls at the beginning if they wish. This option is common in analytic data systems, e.g. SQL {{NULLS FIRST}} and {{NULLS LAST}}, pandas {{na_position}}, R {{na.last}}.
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