CREATE TABLE `Products` (
	`id` int PRIMARY KEY,
	`name` varchar(255),
	`price` varchar,
	`...` varchar(255)
);
CREATE TABLE `SpecificationAttributes` (
	`id` int PRIMARY KEY,
	`name` varchar(255)
);
CREATE TABLE `SpecificationOptions` (
	`id` int,
	`name` varchar(255),
	`attribute_id` int,
	FOREIGN KEY(`attribute_id`) REFERENCES `SpecificationAttributes` (`id`)
);
CREATE TABLE `Product_Option` (
	`id` int,
	`Option_id` int,
	`product_id` int,
	`displayOrder` int,
	`AllowFilter` bool,
	`ShowOnProductPage` bool,
	FOREIGN KEY(`Option_id`) REFERENCES `SpecificationOptions` (`id`),
	FOREIGN KEY(`product_id`) REFERENCES `Products` (`id`)
);