It appears Schema objects are explicitly allowed to have additional attributes as metadata [1]:
Attributes not defined in this document are permitted as metadata, but must > not affect the format of serialized data. However I don't see similar language for Field objects on records [2]. It seems that at least the Python and Java implementation [3][4] passes through extra attributes on the field objects. I can't find similar code in the C++ implementation. Are extra attributes on Fields an option that should be supported across implementations? In practice are the extra attributes on fields used differently then extra attributes on the schema? Thanks, Micah [1] https://avro.apache.org/docs/current/spec.html#schemas [2] https://avro.apache.org/docs/current/spec.html#schema_record [3] https://github.com/apache/avro/blob/master/lang/py3/avro/schema.py#L920 [4] https://github.com/apache/avro/blob/322ba39e68893745f0d40fb5ccc642756507898a/lang/java/avro/src/main/java/org/apache/avro/Schema.java#L1680
