[ARROW-10438] [C++][Dataset] Partitioning::Format on nulls

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 4.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26416
• Assignee: Weston Pace
• Reporter: Ben Kietzman
• Created: 30/Oct/20 20:28
• Updated: 11/Jan/23 08:13
• Resolved: 24/Feb/21 15:34

Description

Writing a dataset with null partition keys is currently untested. Ensure the behavior is documented and correct

Issue Links

• links to: GitHub Pull Request #9323