Inheritance: SqlExpressionVisitor
        public static bool IsConstant(this SqlExpression expression)
        {
            var visitor = new ConstantVisitor();

            visitor.Visit(expression);
            return(visitor.IsConstant);
        }
 public static bool IsConstant(this SqlExpression expression)
 {
     var visitor = new ConstantVisitor();
     visitor.Visit(expression);
     return visitor.IsConstant;
 }