sarutak opened a new pull request, #2468:
URL: https://github.com/apache/avro/pull/2468
AVRO-3847
## What is the purpose of the change
This PR fixes an issue that the current Rust binding doesn't support default
value of pre-defined name for `Union` type field.
Given we have a schema like as follows.
```
{
"name": "record1",
"type": "record",
"fields": [
{
"name": "f1",
"type": {
"name": "record2",
"type": "record",
"fields": [
{
"name": "f1_1",
"type": "int"
}
]
}
}, {
"name": "f2",
"type": ["record2", "int"],
"default": {
"f1_1": 100
}
}
]
}
```
The type of the field `f2` is `union` of `record2` and `int`, and the
default value is of a value of `record2`, which is pre-defined.
Current Rust binding doesn't accept such schemas, raising a error message
like as follows.
{code}
Error: One union type Ref must match the `default`'s value type Map
{code}
The root cause is the resolution for the type of default value doesn't care
about known schemas.
So, the fix is giving such schemas to the resolution.
## Verifying this change
Added new tests.
## Documentation
- Does this pull request introduce a new feature? (no)
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