if DB.Dialector.Name() != "postgres" {
		return
	}

	type MissPKLanguage struct {
		ID   string `gorm:"type:uuid;default:uuid_generate_v4()"`
		Name string
	}

	type MissPKUser struct {
		ID              string           `gorm:"type:uuid;default:uuid_generate_v4()"`
		MissPKLanguages []MissPKLanguage `gorm:"many2many:miss_pk_user_languages;"`
	}

	var err error