ALTER TABLE `shop_shopper_groups` DROP COLUMN IF EXISTS `global_discount`;
ALTER TABLE `shop_shopper_groups` DROP FOREIGN KEY `shop_shopper_groups_ibfk_1`;
ALTER TABLE `shop_shopper_groups` DROP FOREIGN KEY `shop_shopper_groups_ibfk_2`;
ALTER TABLE `shop_shopper_groups` DROP COLUMN IF EXISTS `payment_gateway_id`;
ALTER TABLE `shop_shopper_groups` DROP COLUMN IF EXISTS `shipping_gateway_id`;
