[ARROW-13595] [C++] Add debug mode check for compute kernel output type

• 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/29240
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 10/Aug/21 14:12
• Updated: 11/Jan/23 08:34
• Resolved: 11/Aug/21 17:44

Description

As discovered in https://github.com/apache/arrow/pull/10890, it's currently possible for a kernel to declare an output type and actually return another one.

It would be useful to add debug-mode check in the kernel or function execution machinery to validate the concrete output type returned by the kernel exec function.

Issue Links

• links to: GitHub Pull Request #10903