Expand description
TBD: Currently, sql::func handles matching arguments to their respective
built-in functions (for most built-in functions, at least).
Structs
Tracks candidate implementations.
Describes a single function’s implementation.
Describes how each implementation should be represented in the catalog.
Enums
A specifier for a function or an operator.
Describes possible types of function parameters.
Describes parameter types.
Statics
Correlates a built-in function name to its implementations.
Traits
Functions
Resolves the operator to a set of function implementations.
Selects the best implementation given the provided args using a
process similar to PostgreSQL’s parser, and returns the
ScalarExpr to invoke that function.
Backing implementation for sql_impl_func and sql_impl_cast. See those functions for details.