Andy Grove created ARROW-9386:

             Summary: [Rust] RecordBatch.schema() should not return &Arc<Schema>
                 Key: ARROW-9386
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Rust
            Reporter: Andy Grove
             Fix For: 1.0.0

RecordBatch.schema() should not return &Arc<Schema>. It should either return 
&Schema or Arc<Schema>.

Given that the schema could be a large nested structure and other code may want 
to keep references to it, Arc<Schema> is probably best.

Returning a reference to an Arc just doesn't make much sense, IMHO, and I think 
I was responsible for introducing this early on.

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