extdef

type Aggregate struct {
	Name        string
	Parameters  []Parameter
	Returns     string
	StateType   string
	Transition  string
	Final       string
	Combine     string
	InitCond    string
	HasInitCond bool
}

type Cast struct {
	Source   string
	Target   string
	Routine  string
	CastType casts.CastType
}

type Control struct {
	DefaultVersion string
	Comment        string
	Requires       []string
	Superuser      bool
	Trusted        bool
	Relocatable    bool
	Schema         string
}

type Extension struct {
	Name       string
	Control    Control
	Types      []Type
	Routines   []Routine
	Operators  []Operator
	Casts      []Cast
	Aggregates []Aggregate
}

type Function func(ctx *sql.Context, args ...any) (any, error)

type Operator struct {
	Symbol     string
	Left       string
	Right      string
	Routine    string
	Commutator string
	Negator    string
	Hashes     bool
	Merges     bool
}

type Parameter struct {
	Name string
	Type string
}

type Routine struct {
	Name       string
	Symbol     string
	Parameters []Parameter
	Returns    string
	Strict     bool
	Impl       Function
}

type Type struct {
	Name       string
	Definition pgtypes.BaseTypeDefinition
	Input      string
	Output     string
	Receive    string
	Send       string
	ModIn      string
	ModOut     string
}