[ARROW-8934] [C++] Add timestamp subtract kernel aliased to int64 subtract implementation

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25063
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 25/May/20 14:38
• Updated: 11/Jan/23 08:03
• Resolved: 24/Jun/20 03:31

Description

We can use the same scalar exec function for int64 subtraction as well as (array[TIMESTAMP], array[TIMESTAMP]) -> duration.

Issue Links

• is a child of: ARROW-8894 [C++] C++ array kernels framework and execution buildout (umbrella issue)
• links to: GitHub Pull Request #7530