(intetionally) unsupported avro idl language syntax.
- @namespace, ( only a single top level namespace is allowed for each protocol )
- @aliase
- fixed length fields
- @java-class
- @order
- null union shorthand, E.G.
string?use{ string, null }instead - throws, use
union { SomeType, SomeError }instead - oneway
- @logicalType
- default values , this should be defined in your code, not the api.