插入和更新同一个表时 MySQL 触发器出错

Question

我正在一张桌子上写一个触发器。 架构如下：

架构如下

下面是触发器：

DROP TRIGGER after_servicestatushistory_insert;
DELIMITER $$
CREATE TRIGGER after_servicestatushistory_insert
AFTER INSERT
ON servicestatushistory FOR EACH ROW
BEGIN
DECLARE prevServiceTransIndex INT;
DECLARE prevUserIndex INT;
DECLARE prevServiceOptionIndex INT;
set @prevServiceTransIndex = 0;
set @prevUserIndex = 0;
set @prevServiceOptionIndex =0;
select USERINDEX into @prevUserIndex from servicestransactions where SERVICETRANSACTIONINDEX = NEW.SERVICETRANSACTIONINDEX;
select SERVICEOPTIONINDEX into @prevServiceOptionIndex from servicestransactions where SERVICETRANSACTIONINDEX = NEW.SERVICETRANSACTIONINDEX and userindex = @prevUserIndex;
select SERVICETRANSACTIONINDEX into @prevServiceTransIndex from servicestransactions where USERINDEX=@prevUserIndex and SERVICEOPTIONINDEX = @prevServiceOptionIndex ORDER BY  STARTDATE desc limit 1,1;
IF @prevServiceTransIndex <> 0 THEN
update servicestatushistory set CUSTOMDATE4 = NOW() where ServiceTransactionIndex = @prevServiceTransIndex;
END IF; 
END $$
DELIMITER ; 

它抛出以下错误：

ERROR 1442 (HY000): **Can't update table 'servicestatushistory' in stored function/trigger because it is already used by statement which invoked this stored function/trigger**.```


So Is there any other way to achieve this ?