[ARROW-17411] [C++][Python][Doc] Document that order is not preserved when writing dataset with use_threads=True

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++
• Labels: dataset parquet
• External issue URL: https://github.com/apache/arrow/issues/32680

Language

C++ Python R

• Assignee: Unassigned
• Reporter: Rok Mihevc
• Created: 15/Aug/22 11:47
• Updated: 11/Jan/23 11:50

Description

Current behaviour is surprising and not documented.
See: ARROW-16506 and ARROW-10883