t.Fatalf("errors happened when update: %v", err)
	}

	var user4 User
	DB.Preload("Company").Preload("Manager").Find(&user4, "id = ?", user.ID)
	CheckUser(t, user4, user)

	user.Company.Name += "new2"
	user.Manager.Name += "new2"
	if err := DB.Session(&gorm.Session{FullSaveAssociations: true}).Select("`Company`").Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user5 User

	if err := DB.Exec("UPDATE named_users SET name1 = @name, name2 = @name2, name3 = @name", sql.Named("name", "jinzhu-new"), sql.Named("name2", "jinzhu-new2")).Error; err != nil {
		t.Errorf("failed to update with named arg")
	}

	namedUser.Name1 = "jinzhu-new"
	namedUser.Name2 = "jinzhu-new2"
	namedUser.Name3 = "jinzhu-new"

	var result5 NamedUser

	}

	// Code changed, but not selected, price should not change
	DB.Model(&product).Select("Name", "Price").Updates(map[string]interface{}{"Name": "Product New2", "code": "L1213"})

	if product.Name != "Product New2" || product.Price != 170 || product.Code != "L1212" {
		t.Errorf("invalid data after update, got %+v", product)
	}

	// Code changed, price should changed