CREATE TABLE IF NOT EXISTS `farming_creator_players_known_formulas` ( `identifier` VARCHAR(100) NOT NULL COLLATE 'utf8mb4_general_ci', `formula_id` INT(11) NOT NULL, PRIMARY KEY (`identifier`, `formula_id`) USING BTREE, INDEX `formula_id` (`formula_id`) USING BTREE, CONSTRAINT `formula_id` FOREIGN KEY (`formula_id`) REFERENCES `farming_creator_formulas` (`id`) ON UPDATE CASCADE ON DELETE CASCADE ) COLLATE='utf8mb4_general_ci' ENGINE=InnoDB ;