[ARROW-12606] [C++] Quantile and Mode functions failing on arrays with offset

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 5.0.0
• Component/s: C++, Python
• Labels: pull-request-available
• Environment: macOS, ubuntu
• External issue URL: https://github.com/apache/arrow/issues/28359
• Assignee: yibocai#1
• Reporter: A. Coady
• Created: 30/Apr/21 00:56
• Updated: 11/Jan/23 08:27
• Resolved: 10/May/21 17:05

Description

Sounds unrelated, but it's the simplest example I've gotten to reproduce.
 

import pyarrow as pa, pyarrow.compute as pc 

array = pa.array([[0], [1]])
first, second = [pc.quantile(scalar.values) for scalar in array]
assert first.to_pylist() == [0]
assert (second.to_pylist() == [1]), second # 7.20576e+16

Issue Links

• links to: GitHub Pull Request #10262