[ARROW-4925] [Rust] [DataFusion] Remove duplicate implementations of collect_expr

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.12.0
• Fix Version/s: 0.13.0
• Component/s: Rust, Rust - DataFusion
• External issue URL: https://github.com/apache/arrow/issues/21434
• Assignee: Andy Grove
• Reporter: Andy Grove
• Created: 16/Mar/19 15:51
• Updated: 11/Jan/23 07:37
• Resolved: 23/Mar/19 17:27

Description

There are two separate implementations of collect_expr, one in the sql planner, one in the optimizer. We should have a utility package perhaps that both can delegate to.