[ARROW-10389] [Rust][DataFusion] Make the custom source implementation API more explicit

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Rust, Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26373
• Assignee: Rémi Dettai
• Reporter: Rémi Dettai
• Created: 26/Oct/20 08:26
• Updated: 11/Jan/23 08:12
• Resolved: 29/Oct/20 17:46

Description

As you can see in ARROW-10368, I had quite a hard time figuring out that the TableProvider trait could be used to provide custom source implementations for DataFusion.

I think that adding a read_table(provider: Box<dyn TableProvider + Send + Sync>) -> Result<Arc<dyn DataFrame>> method to the ExecutionContext and an example in the tests and/or in the examples folder would make the API more explicit.

Issue Links

• links to: GitHub Pull Request #8527