[FLINK-18901] Use new type inference for SQL DDL of aggregate functions

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Release Note: The CREATE FUNCTION DDL for aggregate functions uses the new type inference now. It might be necessary to update existing implementations to the new reflective type extraction logic. Use StreamTableEnvironment.registerFunction for the old stack.
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 12/Aug/20 12:13
• Updated: 14/Aug/20 08:37
• Resolved: 14/Aug/20 08:37

Description

Enables the new type inference in the SQL DDL.

Issue Links

• links to: GitHub Pull Request #13142