dawidwys opened a new pull request #11701: [FLINK-17084][table] Implement input type inference and output type strategy for ARRAY/ROW/MAP built-in functions URL: https://github.com/apache/flink/pull/11701 ## What is the purpose of the change The type strategies are implemented using the new type stack. It also removes those three planner expressions from the Blink planner as they are no longer needed. Equivalent expressions in flink planner are not yet removed as they are needed for converting to RexNodes. It disables the FunctionDefinitionConvertRule for built-in functions as the BridgingSqlFunction call generator supports only user defined functions so far. ## Verifying this change Added tests in `InputTypeStrategiesTest` and `TypeStrategiesTest` ## 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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