[ARROW-9632] [Rust] Add a "new" method for ExecutionContextSchemaProvider

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: Rust
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: qingcheng wu
• Created: 03/Aug/20 14:33
• Updated: 06/Aug/20 14:42
• Resolved: 06/Aug/20 14:42

Description

I use ExecutionContextSchemaProvider in outside app, so i add keyword "pub" for ExecutionContextSchemaProvider, and add a new func "new" for ExecutionContextSchemaProvider.

I add keyword "pub" for build_schema also.

Issue Links

• links to: GitHub Pull Request #7895
• links to: GitHub Pull Request #7899