Struct Function2N

server/functions/framework/functions.go:116–124

Function2N is a function that takes at least two parameters. This is different from a SQL variadic function, as the additional parameters may have different types (that do not contribute to type deduction like with `anyelement`), and is only usable by C-language functions (notably built-in ones such

// is only usable by C-language functions (notably built-in ones such as `concat_ws`). The field `paramsAndReturn` works
// similarly to standard functions, with the last type being the return type.
type Function2N struct {
	Name               string
	Return             *pgtypes.DoltgresType
	Parameters         [2]*pgtypes.DoltgresType
	IsNonDeterministic bool
	Strict             bool
	SRF                bool
	Callable           func(ctx *sql.Context, paramsAndReturn []*pgtypes.DoltgresType, val1 any, val2 any, vals []any) (any, error)
}

// Function3 is a function that takes three parameters. The parameter and return types are passed into the Callable
// function when the parameters (and possibly return type) have at least one polymorphic type. The return type is the