DB.Save(&user)

	type result struct {
		Name     string
		Nickname string
		Age      uint
	}
	var res result
	DB.Table("users").Where("name = ?", user.Name).MapColumns(map[string]string{"name": "nickname"}).Scan(&res)
	if res.Nickname != user.Name {
		t.Errorf("Expected res.Nickname to be %s, but got %s", user.Name, res.Nickname)
	}
	if res.Name != "" {

			Name     string `gorm:"size:70;uniqueIndex:idx_us6_all_names"`
			NickName string `gorm:"size:70;uniqueIndex:idx_us6_all_names"`
		}
	)
	checkField(&UniqueStruct5{}, "name", false, "idx_unique_struct5_name")
	checkField(&UniqueStruct6{}, "name", false, "idx_unique_struct6_name")

	checkField(&UniqueStruct7{}, "name", false, "")
	checkField(&UniqueStruct7{}, "nick_name", false, "")
	checkField(&UniqueStruct7{}, "nick_name", false, "")