dawidwys opened a new pull request #13450:
URL: https://github.com/apache/flink/pull/13450
## What is the purpose of the change
Avro 1.9.x introduced yet another mechanism for registering/looking up
conversions for logical types.
If a logical type is part of a union a static field MODEL$ of type
SpecificData
is added to the generated Avro class with registered conversions for logical
types.
In this commit we try to use that SpecificData in AvroSerializer and
Avro(De)SerializationSchema whenever available instead of instantiating a new
unrelated one.
The change is backwards compatible and if the field is not available we
fallback to the old ways.
## Verifying this change
This change added tests in respective test classes for AvroSerializer and
Avro(De)SerializationSchema.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (**yes** / no / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (yes / **no** /
don't know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (**not applicable** / docs /
JavaDocs / not documented)
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