[ARROW-14073] [C++] De-duplicate sort keys

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29669
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 22/Sep/21 15:43
• Updated: 11/Jan/23 08:37
• Resolved: 27/Sep/21 14:43

Description

It's currently possible to mention the same column several times in a sort's keys, which is not really useful.

Issue Links

• links to: GitHub Pull Request #11246