HasColumn(dst interface{}, field string) bool
	RenameColumn(dst interface{}, oldName, field string) error
	ColumnTypes(dst interface{}) ([]ColumnType, error)

	// Views
	CreateView(name string, option ViewOption) error
	DropView(name string) error

	// Constraints
	CreateConstraint(dst interface{}, name string) error
	DropConstraint(dst interface{}, name string) error

		}

		return
	})

	return columnTypes, execErr
}

// CreateView create view from Query in gorm.ViewOption.
// Query in gorm.ViewOption is a [subquery]
//
//	// CREATE VIEW `user_view` AS SELECT * FROM `users` WHERE age > 20
//	q := DB.Model(&User{}).Where("age > ?", 20)
//	DB.Debug().Migrator().CreateView("user_view", gorm.ViewOption{Query: q})
//

	if err == nil {
		t.Errorf("RelationModel2 should not be migrated")
	}
}

func TestMigrateView(t *testing.T) {
	DB.Save(GetUser("joins-args-db", Config{Pets: 2}))

	if err := DB.Migrator().CreateView("invalid_users_pets",
		gorm.ViewOption{Query: nil}); err != gorm.ErrSubQueryRequired {
		t.Fatalf("no view should be created, got %v", err)
	}

	query := DB.Model(&User{}).