[ARROW-9753] [Rust] [DataFusion] Remove the use of Mutex in ExecutionPlan trait

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Rust, Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25805
• Assignee: Jorge Leitão
• Reporter: Andy Grove
• Created: 15/Aug/20 13:33
• Updated: 11/Jan/23 08:08
• Resolved: 03/Oct/20 16:51

Description

The ExecutionPlan trait should not return Arc<Mutex<RecordBatchIterator>> but just Arc<RecordBatchIterator> since most operators do not need to be mutable. Those that do can use interior mutability.

Issue Links

• links to: GitHub Pull Request #7969
• links to: GitHub Pull Request #8307