twalthr opened a new pull request, #26784:
URL: https://github.com/apache/flink/pull/26784
## What is the purpose of the change
This fixes issues with `TableResult.collect()` and inline structured types
created from within SQL.
## Brief change log
The collect sink will derive a data type that matches the specific
conversion classes of the structured type's implementation class. This happens
lazily to not require the classloader containing the users class inside the
planner.
Since the data type utilities are quite messy, I cleaned up some classes for
future code mantainability.
## Verifying this change
This change added tests and can be verified as follows:
`StructuredFunctionsITCase`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: yes
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? JavaDocs
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