[ARROW-10468] [C++][Compute] Refactor FunctionExecutor -> KernelExecutor

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 3.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26444
• Assignee: Ben Kietzman
• Reporter: Ben Kietzman
• Created: 02/Nov/20 19:11
• Updated: 11/Jan/23 08:13
• Resolved: 04/Nov/20 20:18

Description

FunctionExecutor currently handles dispatch to a kernel as well as allocation and invocation of the kernel. In some contexts (such as a filter expression bound to a specific schema) we only need to perform dispatch once, so repeatedly dispatching to kernel is redundant. Refactor to a KernelExecutor which is constructed from a pre-selected kernel.

Issue Links

• links to: GitHub Pull Request #8574