[ARROW-11709] [Rust][DataFusion] Move `expressions` and `inputs` into LogicalPlan rather than helpers in util

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/27568
• Assignee: Andrew Lamb
• Reporter: Andrew Lamb
• Created: 20/Feb/21 10:44
• Updated: 11/Jan/23 08:21
• Resolved: 26/Feb/21 22:08

Description

move `expressions` and `inputs` into LogicalPlan rather than helpers in util, and use Visitor rather than hard coded list

Goal is to consolidate the expression walking in one place

Issue Links

• links to: GitHub Pull Request #9568