[FLINK-14090] Rework FunctionCatalog

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0
• Component/s: Table SQL / API, Table SQL / Client, Table SQL / Planner
• Assignee: Bowen Li
• Reporter: Bowen Li
• Created: 16/Sep/19 19:03
• Updated: 14/Nov/19 21:01
• Resolved: 14/Nov/19 21:01

Description

https://cwiki.apache.org/confluence/display/FLINK/FLIP-57%3A+Rework+FunctionCatalog

Sub-Tasks

• introduce temp system functions to FunctionCatalog: Closed
• introduce temp functions to FunctionCatalog: Closed
• support precise function reference: Closed
• support ambiguous function reference: Closed
• support drop temp functions: Closed
• support drop temp system functions and temp catalog functions: Closed
• support referencing function with fully/partially qualified names in SQL: Resolved
• add documentation for functions categories and new function resolution orders: Closed
• FunctionCatalog.getUserDefinedFunctions() should include temp functions: Closed