{Name: "UINT", DBName: "fuint", BindNames: []string{"UINT"}, DataType: schema.Uint, Creatable: true, Updatable: true, Readable: true, Size: 64, Tag: `gorm:"column:fuint"`},
		{Name: "UINT8", DBName: "fuint8", BindNames: []string{"UINT8"}, DataType: schema.Uint, Creatable: true, Updatable: true, Readable: true, Size: 8, Tag: `gorm:"column:fuint8"`},

flint.png...

	type (
		Level0 struct {
			ID       uint
			Value    string
			Level1ID uint
		}
		Level1 struct {
			ID         uint
			Value      string
			Level2ID   *uint
			Level2_1ID *uint
			Level0s    []Level0 `json:",omitempty"`
		}
		Level2 struct {
			ID       uint
			Level1s  []Level1
			Level3ID uint
		}
		Level2_1 struct {
			ID       uint
			Level1s  []Level1 `json:",omitempty"`

type User struct {
	gorm.Model
	Name      string
	Age       uint
	Birthday  *time.Time
	Account   Account
	Pets      []*Pet
	NamedPet  *Pet
	Toys      []Toy   `gorm:"polymorphic:Owner"`
	Tools     []Tools `gorm:"polymorphicType:Type;polymorphicId:CustomID"`
	CompanyID *int
	Company   Company
	ManagerID *uint
	Manager   *User
	Team      []User     `gorm:"foreignkey:ManagerID"`

func TestCompositePrimaryKeyWithAutoIncrement(t *testing.T) {
	type Product struct {
		ProductID    uint `gorm:"primaryKey;autoIncrement"`
		LanguageCode uint `gorm:"primaryKey"`
		Code         string
		Name         string
	}
	type ProductNonAutoIncrement struct {
		ProductID    uint `gorm:"primaryKey;autoIncrement:false"`
		LanguageCode uint `gorm:"primaryKey"`
		Code         string
		Name         string
	}

	}
}

func TestForeignKeyConstraints(t *testing.T) {
	tidbSkip(t, "not support the foreign key feature")

	type Profile struct {
		ID       uint
		Name     string
		MemberID uint
	}

	type Member struct {
		ID      uint
		Refer   uint `gorm:"uniqueIndex"`
		Name    string
		Profile Profile `gorm:"Constraint:OnUpdate:CASCADE,OnDelete:CASCADE;FOREIGNKEY:MemberID;References:Refer"`
	}

	type (
		Preload struct {
			ID       uint
			Value    string
			NestedID uint
		}
		Join struct {
			ID       uint
			Value    string
			NestedID uint
		}
		Nested struct {
			ID       uint
			Preloads []*Preload
			Join     Join
			ValueID  uint
		}
		Value struct {
			ID     uint
			Name   string
			Nested Nested
		}
	)

			}
		}
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
		field.DataType = Uint
		if field.HasDefaultValue && !skipParseDefaultValue {
			if field.DefaultValueInterface, err = strconv.ParseUint(field.DefaultValue, 0, 64); err != nil {
				schema.err = fmt.Errorf("failed to parse %s as default value for uint, got error: %v", field.DefaultValue, err)
			}
		}

	type (
		Furniture struct {
			gorm.Model
			OwnerID *uint
		}

		Owner struct {
			gorm.Model
			Furnitures []Furniture
			CompanyID  *uint
			Company    Company
		}

		Building struct {
			gorm.Model
			Name    string
			OwnerID *uint
			Owner   Owner
		}
	)

	DB.Migrator().DropTable(&Building{}, &Owner{}, &Furniture{})

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