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Posted to jira@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/09/22 16:05:00 UTC
[jira] [Updated] (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 ]
ASF GitHub Bot updated ARROW-12063:
-----------------------------------
Labels: pull-request-available (was: )
> [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
> Labels: pull-request-available
> Fix For: 6.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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