Andy Grove created ARROW-2460:

             Summary: [Rust] Schema and DataType::Struct should use 
                 Key: ARROW-2460
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Andy Grove
             Fix For: 0.10.0

Currently we use Vec<Field> instead of Vec<Rc<Field>> which is resulting in 
having to clone fields in some use cases, which could be expensive for structs.

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