Ian Cook created ARROW-12063:
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Summary: [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
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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