*dest = append(*dest, mapValue)
		}
	case *int, *int8, *int16, *int32, *int64,
		*uint, *uint8, *uint16, *uint32, *uint64, *uintptr,
		*float32, *float64,
		*bool, *string, *time.Time,
		*sql.NullInt32, *sql.NullInt64, *sql.NullFloat64,
		*sql.NullBool, *sql.NullString, *sql.NullTime:
		for initialized || rows.Next() {
			initialized = false
			db.RowsAffected++
			db.AddError(rows.Scan(dest))
		}
	default:

	spec := nullTestSpec{"nullint32", "int32", [6]nullTestRow{
		{NullInt32{31, true}, 1, NullInt32{31, true}},
		{NullInt32{-22, false}, 1, NullInt32{0, false}},
		{22, 1, NullInt32{22, true}},
		{NullInt32{33, true}, 1, NullInt32{33, true}},
		{NullInt32{222, false}, 1, NullInt32{0, false}},
		{0, NullInt32{31, false}, nil},
	}}
	nullTestRun(t, spec)
}

func TestNullInt16Param(t *testing.T) {

	case "nullbool":
		return reflect.TypeFor[NullBool]()
	case "int16":
		return reflect.TypeFor[int16]()
	case "nullint16":
		return reflect.TypeFor[NullInt16]()
	case "int32":
		return reflect.TypeFor[int32]()
	case "nullint32":
		return reflect.TypeFor[NullInt32]()
	case "string":
		return reflect.TypeFor[string]()
	case "nullstring":
		return reflect.TypeFor[NullString]()
	case "int64":

}

// Value implements the [driver.Valuer] interface.
func (n NullInt64) Value() (driver.Value, error) {
	if !n.Valid {
		return nil, nil
	}
	return n.Int64, nil
}

// NullInt32 represents an int32 that may be null.
// NullInt32 implements the [Scanner] interface so
// it can be used as a scan destination, similar to [NullString].
type NullInt32 struct {
	Int32 int32
	Valid bool // Valid is true if Int32 is not NULL

		{"NullFloat64.Float64", Field, 0},
		{"NullFloat64.Valid", Field, 0},
		{"NullInt16", Type, 17},
		{"NullInt16.Int16", Field, 17},
		{"NullInt16.Valid", Field, 17},
		{"NullInt32", Type, 13},
		{"NullInt32.Int32", Field, 13},
		{"NullInt32.Valid", Field, 13},
		{"NullInt64", Type, 0},
		{"NullInt64.Int64", Field, 0},
		{"NullInt64.Valid", Field, 0},
		{"NullString", Type, 0},
		{"NullString.String", Field, 0},

pkg database/sql, method (*NullInt32) Scan(interface{}) error
pkg database/sql, method (NullInt32) Value() (driver.Value, error)
pkg database/sql, method (*NullTime) Scan(interface{}) error
pkg database/sql, method (NullTime) Value() (driver.Value, error)
pkg database/sql, type NullInt32 struct
pkg database/sql, type NullInt32 struct, Int32 int32
pkg database/sql, type NullInt32 struct, Valid bool

	ColumnTypeValue    sql.NullString
	PrimaryKeyValue    sql.NullBool
	UniqueValue        sql.NullBool
	AutoIncrementValue sql.NullBool
	LengthValue        sql.NullInt64
	DecimalSizeValue   sql.NullInt64
	ScaleValue         sql.NullInt64
	NullableValue      sql.NullBool
	ScanTypeValue      reflect.Type
	CommentValue       sql.NullString
	DefaultValueValue  sql.NullString
}

	Age              sql.NullInt64
	Male             sql.NullBool
	Height           sql.NullFloat64
	Birthday         sql.NullTime
	Allergen         NullString
	Password         EncryptedData
	Bytes            []byte
	Num              Num
	Strings          StringsSlice
	Structs          StructsSlice
	Role             Role
	UserID           *sql.NullInt64
	User             User

type LevelA2 struct {
	ID       uint
	Value    string
	LevelA3s []*LevelA3 `json:",omitempty"`
}

type LevelA3 struct {
	ID        uint
	Value     string
	LevelA1ID sql.NullInt64
	LevelA1   *LevelA1
	LevelA2ID sql.NullInt64
	LevelA2   *LevelA2
}

func TestNestedPreload10(t *testing.T) {
	DB.Migrator().DropTable(&LevelA3{}, &LevelA2{}, &LevelA1{})

	// test valuer and other type
	age := myint(10)
	var nilTime *time.Time
	newValues2 := map[string]interface{}{
		"name":       sql.NullString{String: "valuer_and_setter_3", Valid: true},
		"id":         &sql.NullInt64{Int64: 3, Valid: true},
		"created_at": tests.Now(),
		"updated_at": nilTime,
		"deleted_at": time.Now(),
		"age":        &age,
		"birthday":   mytime(time.Now()),
		"active":     mybool(true),
	}