[ARROW-18252] Add Acero test to ensure names in the root relation of Substrain plans are retained

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/33434
• Assignee: Unassigned
• Reporter: Bryce Mecum
• Created: 04/Nov/22 19:37
• Updated: 11/Jan/23 11:59

Description

Currently, Acero retains the names in the root relation when it executes a Substrait plan but there isn't a unit test in place to prevent a future regression.