TypeValue should include Value

enum_type.go

@@ -5,7 +5,6 @@ import errors "golang.org/x/xerrors"
 // EnumType represents a enum type. While it implements Value, this is only in service of its type conversion duties
 // when registered as a data type in a ConnType. It should not be used directly as a Value.
 type EnumType interface {
-	Value
 	TypeValue
 
 	// Members returns possible members of this enumeration. The returned slice must not be modified.

pgtype.go

@@ -128,12 +128,14 @@ type Value interface {
 	AssignTo(dst interface{}) error
 }
 
-// TypeValue represents values where instances can represent different PostgreSQL types. This can be useful for
+// TypeValue is a Value where instances can represent different PostgreSQL types. This can be useful for
 // representing types such as enums, composites, and arrays.
 //
 // In general, instances of TypeValue should not be used to directly represent a value. It should only be used as an
 // encoder and decoder internal to ConnInfo.
 type TypeValue interface {
+	Value
+
 	// NewTypeValue creates a TypeValue including references to internal type information. e.g. the list of members
 	// in an EnumType.
 	NewTypeValue() Value