Hi folks, I'd like to kick off a discussion on reworking Flink's FunctionCatalog. It's critically helpful to improve function usability in SQL.
https://docs.google.com/document/d/1w3HZGj9kry4RsKVCduWp82HkW6hhgi2unnvOAUS72t8/edit?usp=sharing In short, it: - adds support for precise function reference with fully/partially qualified name - redefines function resolution order for ambiguous function reference - adds support for Hive's rich built-in functions (support for Hive user defined functions was already added in 1.9.0) - clarifies the concept of temporary functions Would love to hear your thoughts. Bowen
