[FLINK-9502] Use generic parameter search for user-define functions when argument contains Object type

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: Table SQL / API
• Labels: auto-unassigned
• Assignee: Unassigned
• Reporter: Rong Rong
• Created: 01/Jun/18 23:34
• Updated: 30/Apr/21 03:53
• Resolved: 30/Apr/21 03:53

Description

This ticket is to enable generic Object type as element type by using SQL ANY in parameter / argument type mapping.
This will enable support for use case such as:

public String eval(Object objArg) { /* ...  */ }

The changes require here:
1. Introduce wildcard search and search rules for SQL ANY type usage.
2. Enabling wildcard search when concrete type search returns no match.