JingsongLi opened a new pull request #10039: support referencing function with fully/partially qualified names in SQL[FLINK-14262][table] URL: https://github.com/apache/flink/pull/10039 ## What is the purpose of the change Flink should support referencing function with fully/partially qualified names in SQL ``` SELECT <cat>.<db>.<func>(col) FROM T SELECT <db>.<func>(col) FROM T ``` 1. We should lookup function by identifier instead of name. 2. We should pass the right identifier to UserDefineFunction instead of name string. ## Verifying this change CatalogTableITCase ## 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, 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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