Andrew Lamb created ARROW-10865:
-----------------------------------
Summary: [Rust][DataFusion] More ergonomic conversion between
Schema, SchemaRef, DFSchema, and DFSchemaRef
Key: ARROW-10865
URL: https://issues.apache.org/jira/browse/ARROW-10865
Project: Apache Arrow
Issue Type: Improvement
Reporter: Andrew Lamb
https://github.com/apache/arrow/pull/8839 added a DFSchema wrapper object into
DataFusion so we can represent multiple relations (e.g. tables) easily
However, it is somewhat annyoing to use now (as I discovered while trying to
update IOx to use the latest version of Arrow).
Specifically, there are things like this:
```
Arc::new(DFSchema::from(&parquet.schema())?),
```
Instead I would like to be able to write
```
parquet.schema().try_into()?
```
There are several other conversions I would like to be able to use the standard
Rust into or `try_into` for:
Schema -> DFSchema
Schema -> Arc<DFSchema>
Arc<Schema> -> DFSchema
Arc<Schema> -> Arc<DFSchema>
DFSchema -> Schema
DFSchema -> Arc<Schema>
Arc<DFSchema> -> Schema
Arc<DFSchema> -> Arc<Schema>
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