Santiago Fraire Willemoes created AVRO-3687:
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             Summary: Rust enum missing default
                 Key: AVRO-3687
                 URL: https://issues.apache.org/jira/browse/AVRO-3687
             Project: Apache Avro
          Issue Type: Bug
          Components: rust
    Affects Versions: 1.11.1
            Reporter: Santiago Fraire Willemoes


I cannot seem to find the enum's default attribute as documented [in the 
spec|https://avro.apache.org/docs/1.11.1/specification/#enums:~:text=for%20names).-,default,-%3A%20A%20default%20value]

I'm trying to create an avdl parser and this is a blocker for me. I was 
wondering if there's a reason for this. Otherwise I can submit a PR, please let 
me know, thanks.

Code sample:
{code}
let schema_str = 
r#"{"name":"Shapes","type":"enum","symbols":["SQUARE","TRIANGLE","CIRCLE","OVAL"],
 "default": "SQUARE"}"#;
let r = Schema::parse_str(schema_str).unwrap();
let can = r.canonical_form();
println!("{r:?}");
println!("{can}");
{code}

Observe the enum in its canonical form is missing the default.

Looking at the Enum's code, we cannot see a default field:
https://github.com/apache/avro/blob/master/lang/rust/avro/src/schema.rs#L113-L119

I apologize if this is somehow wrong



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