Изменить sql запрос

ALTER TABLE `catalog_product_decision` ADD `title` varchar(255) NULL DEFAULT NULL COMMENT '' COLLATE utf8_general_ci AFTER image2_ext;

DELIMITER ;;

 

CREATE PROCEDURE upgrade_my_fucking_structure()

BEGIN

IF NOT EXISTS(

SELECT * FROM information_schema.COLUMNS

WHERE COLUMN_NAME='title' AND TABLE_NAME='catalog_product_decision' AND TABLE_SCHEMA='schema'

THEN

    ALTER TABLE `schema`.`catalog_product_decision`

    ADD `title` varchar(255) NULL DEFAULT NULL COMMENT '' COLLATE utf8_general_ci AFTER image2_ext;

 

END IF;

 

END;;

 

CALL upgrade_my_fucking_structure();;