// * public abstract T Visit(DbMultiplyExpression exp);
// * public override DbExpression Visit(DbMultiplyExpression exp) { return(new DbMultiplyExpression(exp.Type, this.MakeNewExpression(exp.Left), this.MakeNewExpression(exp.Right), exp.Method)); }
// * public virtual T Visit(DbMultiplyExpression exp) { throw new NotImplementedException(); }