return err
	}
	db.Plugins[name] = plugin
	return nil
}

// ToSQL for generate SQL string.
//
//	db.ToSQL(func(tx *gorm.DB) *gorm.DB {
//			return tx.Model(&User{}).Where(&User{Name: "foo", Age: 20})
//				.Limit(10).Offset(5)
//				.Order("name ASC")
//				.First(&User{})
//	})
func (db *DB) ToSQL(queryFn func(tx *DB) *DB) string {

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