[FLINK-15487] Expose the new type inference for scalar functions

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Table SQL / API, Table SQL / Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 06/Jan/20 12:48
• Updated: 17/Feb/20 12:49
• Resolved: 05/Feb/20 08:55

Description

After FLINK-15281 is merged, we are able to introduce functions with the new type inference. We start by enabling scalar functions through the stack.

This includes the following changes:

• Introduce a UserDefinedFunction.getTypeInference method
• Expose TableEnvironment.createTemporarySystemFunction and TableEnvironment.createTemporaryFunction
• Update FunctionCatalog
• Update the code generation

Issue Links

• is related to: FLINK-14568 Add methods for interacting with temporary functions
• links to: GitHub Pull Request #10928
• links to: GitHub Pull Request #10942
• links to: GitHub Pull Request #10960