[Format][FlightRPC] Flight SQL evolution
Open
Component: FlightRPC
Component: Format
Type: enhancement
- Dominant language
- C++
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Description
### Describe the enhancement requested
From https://github.com/apache/arrow-rs/issues/5731#issuecomment-2133104504
Originally Flight RPC was implemented as a framework wrapping gRPC. This was especially expedient for the C++ implementation. By now it's mostly a weight dragging down Flight users, especially Flight SQL.
If we have the chance to evolve Flight SQL and/or Flight RPC, some changes may include:
- Use a proper gRPC service definition, instead of opaque bytes payloads
- [ ] https://github.com/apache/arrow/issues/34485
- [ ] https://github.com/apache/arrow/issues/37900
### Component(s)
FlightRPC, Format
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