identityMap, foreignValues = schema.GetIdentityFieldValuesMap(tx.Statement.Context, reflectValue, foreignFields)
		if len(foreignValues) == 0 {
			return nil
		}
	}

	// nested preload
	for p, pvs := range preloads {
		tx = tx.Preload(p, pvs...)
	}

	reflectResults := rel.FieldSchema.MakeSlice().Elem()
	column, values := schema.ToQueryValues(clause.CurrentTable, relForeignKeys, foreignValues)

	if len(values) != 0 {

	)

	DB.Migrator().DropTable(&Preload{}, &Join{}, &Nested{}, &Value{})
	DB.Migrator().AutoMigrate(&Preload{}, &Join{}, &Nested{}, &Value{})

	value1 := Value{
		Name: "value",
		Nested: Nested{
			Preloads: []*Preload{
				{Value: "p1"}, {Value: "p2"},
			},
			Join: Join{Value: "j1"},
		},
	}
	value2 := Value{
		Name: "value2",
		Nested: Nested{
			Preloads: []*Preload{

	// ErrInvalidValueOfLength invalid values do not match length
	ErrInvalidValueOfLength = errors.New("invalid association values, length doesn't match")
	// ErrPreloadNotAllowed preload is not allowed when count is used
	ErrPreloadNotAllowed = errors.New("preload is not allowed when count is used")
	// ErrDuplicatedKey occurs when there is a unique key constraint violation
	ErrDuplicatedKey = errors.New("duplicated key not allowed")