DROP PROCEDURE IF EXISTS add_migration;
delimiter ??
CREATE PROCEDURE `add_migration`()
BEGIN
DECLARE v INT DEFAULT 1;
SET v = (SELECT COUNT(*) FROM `migrations` WHERE `id`='20171010065050');
IF v=0 THEN
INSERT INTO `migrations` VALUES ('20171010065050');
-- Add your query below.

CREATE TABLE IF NOT EXISTS `character_deleted_items` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `player_guid` int(11) unsigned NOT NULL DEFAULT '0',
  `item_entry` mediumint(8) unsigned NOT NULL DEFAULT '0',
  `stack_count` mediumint(8) unsigned NOT NULL DEFAULT '1',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

-- End of migration.
END IF;
END??
delimiter ; 
CALL add_migration();
DROP PROCEDURE IF EXISTS add_migration;