Fix: Prepare statement without result set

connection.go

@@ -454,6 +454,7 @@ func (c *Connection) Prepare(name, sql string) (err error) {
 						ps.FieldDescriptions[i].FormatCode = 1
 					}
 				}
+			case noData:
 			case readyForQuery:
 				c.rxReadyForQuery(r)
 				c.preparedStatements[name] = &ps

connection_test.go

@@ -495,6 +495,11 @@ func TestPrepare(t *testing.T) {
 			t.Errorf("Expected: %#v Received: %#v", bytea, result)
 		}
 	}
+
+	mustExecute(t, conn, "create temporary table foo(id serial)")
+	if err = conn.Prepare("deleteFoo", "delete from foo"); err != nil {
+		t.Fatalf("Unable to prepare delete: %v", err)
+	}
 }
 
 func TestPrepareFailure(t *testing.T) {

messages.go

@@ -21,6 +21,7 @@ const (
 	parameterDescription = 't'
 	bindComplete         = '2'
 	notificationResponse = 'A'
+	noData               = 'n'
 )
 
 type startupMessage struct {