Alexey Raga created AVRO-3671:
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Summary: Codegen: int and enum values within Unions are
indistinguishable
Key: AVRO-3671
URL: https://issues.apache.org/jira/browse/AVRO-3671
Project: Apache Avro
Issue Type: Bug
Components: csharp
Affects Versions: 1.11.1
Reporter: Alexey Raga
When there is a schema that contains an enum:
{code:java}
{
"type": "enum",
"name": "Suit",
"symbols": ["SPADES", "HEARTS", "DIAMONDS", "CLUBS"]
} {code}
and a field of this union type (allowed by the specification):
{code:java}
"type": [ "null", "int", "Suit" ]{code}
The C# code generator generates a value of type "object" for this field (union)
as a part of ISpecificRecord.
When deserialising Avro, this field always contains numeric values, even when
the value of type "Suit" was set for serialisation.
There seems to be no way in the client code to figure out whether the value is
supposed to be "Suit" or "int". Because the property of type "object" always
contains "int" values inside.
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