twalthr opened a new pull request #12228:
URL: https://github.com/apache/flink/pull/12228
## What is the purpose of the change
This enables inline structured types in the Blink planner. Inline structured
types are extracted (e.g. in UDFs) and don't need to be registered in a
catalog. This PR finalizes FLIP-65 for scalar and table functions because
existing functions can be migrated with a replacement to the new type system.
It also aims to add structured type support to all switch/case statements
based on `ROW`. Structured type support should still be declared as
experimental until we have more tests and can also deal with structured types
in sources and sinks.
## Brief change log
See commit messages.
## Verifying this change
This change added tests and can be verified as follows: `FunctionITCase`
## 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/Mesos, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? yes
- If yes, how is the feature documented? JavaDocs
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