twalthr opened a new pull request #11225: [FLINK-16261][table] Use type compatibility consistently to avoid casting URL: https://github.com/apache/flink/pull/11225 ## What is the purpose of the change In many cases, full type equality is not necessary. Especially when leaving the table ecosystem to sinks or UDFs a clear definition of "type compatibility" is important. This commit defines the type compatibility for all logical types to avoid unnecessary casting and less type inequality exceptions. ## Brief change log - Clear definition of when to avoid casting - All calls to LogicalType.equals() revisited - Replaced by `LogicalTypeCasts.supportsAvoidingCasts` ## Verifying this change Existing tests for type inference and `FunctionITCase` have been updated. ## 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)`: no - 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? no - If yes, how is the feature documented? JavaDocs
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