if value := reflect.ValueOf(values[idx]).Elem(); value.Kind() == reflect.Ptr && value.IsNil() {
							isNilPtrValue = true
							break
						}

						relValue.Set(reflect.New(relValue.Type().Elem()))
						joinedNestedSchemaMap[fullRelsName] = nil
					}
				}
				currentReflectValue = relValue
			}

			if !isNilPtrValue { // ignore if value is nil

// RunWithValue run migration with statement value
func (m Migrator) RunWithValue(value interface{}, fc func(*gorm.Statement) error) error {
	stmt := &gorm.Statement{DB: m.DB}
	if m.DB.Statement != nil {
		stmt.Table = m.DB.Statement.Table
		stmt.TableExpr = m.DB.Statement.TableExpr
	}

	if table, ok := value.(string); ok {
		stmt.Table = table
	} else if err := stmt.ParseWithSpecialTableName(value, stmt.Table); err != nil {
		return err
	}

	ErrUnsupportedRelation = errors.New("unsupported relations")
	// ErrPrimaryKeyRequired primary keys required
	ErrPrimaryKeyRequired = errors.New("primary key required")
	// ErrModelValueRequired model value required
	ErrModelValueRequired = errors.New("model value required")
	// ErrModelAccessibleFieldsRequired model accessible fields required
	ErrModelAccessibleFieldsRequired = errors.New("model accessible fields required")

			}},
			"SELECT * FROM `users` WHERE `users`.`id` = ? OR `name` <> ? AND `age` > ?",
			[]interface{}{"1", "jinzhu", 18},
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Where{

	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{
				{Value: "p3"}, {Value: "p4"}, {Value: "p5"},
			},

	preloadMap := map[string]map[string][]interface{}{}
	setPreloadMap := func(name, value string, args []interface{}) {
		if _, ok := preloadMap[name]; !ok {
			preloadMap[name] = map[string][]interface{}{}
		}
		if value != "" {
			preloadMap[name][value] = args
		}
	}

	for name, args := range preloads {
		preloadFields := strings.Split(name, ".")
		value := strings.TrimPrefix(strings.TrimPrefix(name, preloadFields[0]), ".")

		t.Fatalf("failed to query struct data with null age, got error %v", err)
	}

	AssertEqual(t, result, user)

	users := []User{
		*GetUser("scan_null_value_for_slice_1", Config{}),
		*GetUser("scan_null_value_for_slice_2", Config{}),
		*GetUser("scan_null_value_for_slice_3", Config{}),
	}
	DB.Create(&users)

	if err := DB.Model(&users[0]).Update("age", nil).Error; err != nil {