func (db *DB) Select(query interface{}, args ...interface{}) (tx *DB) {
	tx = db.getInstance()

	switch v := query.(type) {
	case []string:
		tx.Statement.Selects = v

		for _, arg := range args {
			switch arg := arg.(type) {
			case string:
				tx.Statement.Selects = append(tx.Statement.Selects, arg)
			case []string:
				tx.Statement.Selects = append(tx.Statement.Selects, arg...)
			default:

	}

	db := DB.Scopes(func(tx *gorm.DB) *gorm.DB {
		return tx.Table("custom_table")
	}).Session(&gorm.Session{})

	db.AutoMigrate(&User{})
	if db.Find(&User{}).Statement.Table != "custom_table" {
		t.Errorf("failed to call Scopes")
	}

	result := DB.Scopes(NameIn1And2, func(tx *gorm.DB) *gorm.DB {
		return tx.Session(&gorm.Session{})
	}).Find(&users1)

	if result.RowsAffected != 2 {

	Owner string
}

func (s Product3) BeforeCreate(tx *gorm.DB) (err error) {
	tx.Statement.SetColumn("Price", s.Price+100)
	return nil
}

func (s Product3) BeforeUpdate(tx *gorm.DB) (err error) {
	if tx.Statement.Changed() {
		tx.Statement.SetColumn("Price", s.Price+10)
	}

	if tx.Statement.Changed("Code") {
		s.Price += 20
		tx.Statement.SetColumn("Price", s.Price+30)
	}
	return nil
}

		tx = tx.Set("gorm:update_track_time", true)
	}

	if len(selects) > 0 {
		tx = tx.Select(selects)
	} else if restricted && len(omits) == 0 {
		tx = tx.Omit(clause.Associations)
	}

	if len(omits) > 0 {
		tx = tx.Omit(omits...)
	}

	return db.AddError(tx.Create(values).Error)
}

// check association values has been saved
// if values kind is Struct, check it has been saved

		for _, join := range db.Statement.Joins {
			joins = append(joins, join.Name)
		}

		tx := preloadDB(db, db.Statement.ReflectValue, db.Statement.Dest)
		if tx.Error != nil {
			return
		}

		db.AddError(preloadEntryPoint(tx, joins, &tx.Statement.Schema.Relationships, db.Statement.Preloads, db.Statement.Preloads[clause.Associations]))
	}
}

func AfterQuery(db *gorm.DB) {

	tx := db.getInstance().Set("rows", false)
	tx = tx.callbacks.Row().Execute(tx)
	row, ok := tx.Statement.Dest.(*sql.Row)
	if !ok && tx.DryRun {
		db.Logger.Error(tx.Statement.Context, ErrDryRunModeUnsupported.Error())
	}
	return row
}

func (db *DB) Rows() (*sql.Rows, error) {
	tx := db.getInstance().Set("rows", true)
	tx = tx.callbacks.Row().Execute(tx)
	rows, ok := tx.Statement.Dest.(*sql.Rows)

				queryConds := rel.ToQueryConditions(db.Statement.Context, db.Statement.ReflectValue)
				modelValue := reflect.New(rel.FieldSchema.ModelType).Interface()
				tx := db.Session(&gorm.Session{NewDB: true}).Model(modelValue)
				withoutConditions := false
				if db.Statement.Unscoped {
					tx = tx.Unscoped()
				}

				if len(db.Statement.Selects) > 0 {
					selects := make([]string, 0, len(db.Statement.Selects))

)

func BeginTransaction(db *gorm.DB) {
	if !db.Config.SkipDefaultTransaction && db.Error == nil {
		if tx := db.Begin(); tx.Error == nil {
			db.Statement.ConnPool = tx.Statement.ConnPool
			db.InstanceSet("gorm:started_transaction", true)
		} else if tx.Error == gorm.ErrInvalidTransaction {
			tx.Error = nil
		} else {
			db.Error = tx.Error
		}
	}
}

func CommitOrRollbackTransaction(db *gorm.DB) {

	}
	user := User{ID: 1, Name: "king"}
	tx := DB.Session(&gorm.Session{DryRun: true}).Save(&user)

	if err := tx.Error; err != nil {
		t.Fatalf("failed to update user,missing where condition,err=%+v", err)
	}

	if !regexp.MustCompile("WHERE .id. = [^ ]+$").MatchString(tx.Statement.SQL.String()) {
		t.Fatalf("invalid updating SQL, got %v", tx.Statement.SQL.String())
	}

			}

			err = tx.Exec(createTableSQL, values...).Error
			return err
		}); err != nil {
			return err
		}
	}
	return nil
}

// DropTable drop table for values
func (m Migrator) DropTable(values ...interface{}) error {
	values = m.ReorderModels(values, false)
	for i := len(values) - 1; i >= 0; i-- {
		tx := m.DB.Session(&gorm.Session{})