twalthr opened a new pull request #8661: [FLINK-12711][table] Separate function implementation and definition URL: https://github.com/apache/flink/pull/8661 ## What is the purpose of the change This PR is a first step toward unified expression stacks. It uncouples runtime implementation from information that is needed during validation and planning. With this change it is possible to declare properties such as `isDeterminstic` or `requiresOver` also for built-in functions. A next step is to add a `getTypeInference` method to `FunctionDefinition` which enables the removal of all `PlannerExpression` by using `BuiltInFunctionDefinition` instead. ## Brief change log See commit messages. ## Verifying this change This change is already covered by existing tests. ## 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, 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
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
