ALTER TABLE `webshop_material` ADD `size_parameters` TEXT NOT NULL AFTER `language`;
ALTER TABLE `webshop_material` ADD `auto_parameters` TEXT NOT NULL AFTER `size_parameters`;
ALTER TABLE `webshop_material` DROP ` unit_price `;
ALTER TABLE `webshop_material` DROP ` time_limit `;
ALTER TABLE `webshop_material` DROP ` size_parameters `;
