mysql 查询遇到的问题

有两个表，
我写了一个查询语句如下，我标红的地方既是出现问题的地方，我将person2这列去掉就能正常查询，加上person2这列就报[Err] 1222 - The used SELECT statements have a different number of columns错误，首先确定表1的person2和表2的customer_name格式是一样的，不晓得为什么？
select `g`.`id` AS `id`,1 AS `f_type`,`g`.`bank_account` AS `account`,-(`g`.`get_money`) AS `money`,`g`.`get_money_date` AS `money_date`,`g`.`becuse` AS `becuse`,`g`.`person` AS `person`,`g`.`person2` AS `person2`,`g`.`balance` AS `balance` from `get_money_log` `g` union all select `ba`.`id` AS `id`,2 AS `f_type`,`ba`.`account` AS `account`,`ba`.`receivable_money` AS `money`,`ba`.`income_date` AS `money_date`,`ba`.`note` AS `becuse`,`ba`.`income_customer` AS `person`,`ba`.`balance` AS `balance` from `business_accounts` `ba` union select `bs`.`id` AS `id`,3 AS `f_type`,`bs`.`account` AS `account`,-(`bs`.`pay_already_money`) AS `money`,`bs`.`pay_date` AS `money_date`,`bs`.`note` AS `becuse`,`bs`.`pay_person` AS `person`,`bs`.`customer_name` AS `person2`,`bs`.`balance` AS `balance` from `business_shoud` `bs`