Coerces parameters to match column types based on AST analysis.
This is primarily for test helpers that load JSON fixtures with string values. Real usage expects customers to pass correctly typed parameters.
The query AST
Raw parameter values (potentially strings from JSON)
Either a RuntimeTableSchema or RowCache with schema metadata
Coerced parameters array
Coerces parameters to match column types based on AST analysis.
This is primarily for test helpers that load JSON fixtures with string values. Real usage expects customers to pass correctly typed parameters.