Long Tang created AVRO-4211:
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Summary: IDLUtils cannot generate schema for union fields with a
default value that is NOT the 1st element
Key: AVRO-4211
URL: https://issues.apache.org/jira/browse/AVRO-4211
Project: Apache Avro
Issue Type: Improvement
Reporter: Long Tang
Assignee: Christophe Le Saec
Fix For: 1.12.0
The Avro specification requires that a default value matches the first schema
of a union type.
Using @Nullable on a field will return a union type of the form ["null",
"<something>"].
@Nullable also sets the default value to "null".
It is not possible to override this default value w{color:#172b4d}ith
@AvroDefault because of the order of the schemas in the generated union.{color}
It would be nice that union types are automatically reordered to match the type
of the provided default value.
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