CREATE TABLE IF NOT EXISTS `qiwi_transaction_$mid` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `cid` int(11) NULL ,
  `create_date` datetime NULL ,
  `end_date` datetime NULL ,
  `summ` decimal(10,2) NULL ,
  `status` int(11) NULL ,
  PRIMARY KEY (`id`) 
);

ALTER TABLE `qiwi_transaction_$mid` ADD COLUMN `add_key` varchar(255) NULL;
ALTER TABLE `qiwi_transaction_$mid` CHANGE COLUMN `status` `status` VARCHAR(15) NULL DEFAULT NULL ;
ALTER TABLE `qiwi_transaction_$mid` ADD COLUMN `refund_id` varchar(10) NULL DEFAULT NULL;