Method stringTypeSQL

postgres/parser/types/types.go:2455–2482

stringTypeSQL returns the visible type name plus any width specifier for the STRING/COLLATEDSTRING type.

()

// stringTypeSQL returns the visible type name plus any width specifier for the
// STRING/COLLATEDSTRING type.
func (t *T) stringTypeSQL() string {
	typName := "STRING"
	switch t.Oid() {
	case oid.T_text:
		typName = "TEXT"
	case oid.T_varchar:
		typName = "VARCHAR"
	case oid.T_bpchar:
		typName = "CHAR"
	case oid.T_char:
		// Yes, that's the name. The ways of PostgreSQL are inscrutable.
		typName = `"char"`
	case oid.T_name:
		typName = "NAME"
	}

	// In general, if there is a specified width we want to print it next to the
	// type. However, in the specific case of CHAR and "char", the default is 1
	// and the width should be omitted in that case.
	if t.Width() > 0 {
		o := t.Oid()
		if t.Width() != 1 || (o != oid.T_bpchar && o != oid.T_char) {
			typName = fmt.Sprintf("%s(%d)", typName, t.Width())
		}
	}

	return typName
}

// IsHydrated returns true if this is a user-defined type and the TypeMeta
// is hydrated.