[ARROW-8205] [Rust] [DataFusion] DataFusion should enforce unique field names in a schema

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.16.0
• Fix Version/s: 2.0.0
• Component/s: Rust, Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17101
• Assignee: Jorge Leitão
• Reporter: Andy Grove
• Created: 25/Mar/20 00:31
• Updated: 11/Jan/23 07:58
• Resolved: 06/Oct/20 03:06

Description

There does not seem to be any validation to avoid schemas being created with duplicate field names. We should add this along with unit tests.

This will require changing the signature of the constructors to try_new with a Result return type.

Issue Links

• links to: GitHub Pull Request #8334