Name string
	}
	type Address struct {
		CountryID int
		Country   Country
	}
	type NestedAddress struct {
		Address
	}
	type CountryMixin struct {
		CountryID int
		Country   Country
	}
	type Org struct {
		ID              int
		PostalAddress   Address `gorm:"embedded;embeddedPrefix:postal_address_"`
		VisitingAddress Address `gorm:"embedded;embeddedPrefix:visiting_address_"`

	type Org struct {
		ID              int
		PostalAddress   EmbeddedAddress `gorm:"embedded;embeddedPrefix:postal_address_"`
		VisitingAddress EmbeddedAddress `gorm:"embedded;embeddedPrefix:visiting_address_"`
		AddressID       *int
		Address         *EmbeddedAddress
		NestedAddress   NestedAddress `gorm:"embedded;embeddedPrefix:nested_address_"`
	}

	DB.Migrator().DropTable(&Org{}, &EmbeddedAddress{}, &Country{})

	type AddressByZipCode struct {
		ZipCode string `gorm:"primary_key"`
		Address string
	}

	DB.Migrator().DropTable(&AddressByZipCode{})
	if err := DB.AutoMigrate(&AddressByZipCode{}); err != nil {
		t.Fatalf("failed to migrate, got error %v", err)
	}

	address := AddressByZipCode{ZipCode: "00501", Address: "Holtsville"}
	DB.Create(&address)

	var result AddressByZipCode
	DB.First(&result, "00501")