You can't specify target table 'Person' for update in FROM clause

mysql

中调用下面的语句提示该错误

delete from Person where id in (
select t1.id from Person t1, Person t2 where t1.email = t2.email and t1.id > t2.id
);

In MySQL, you can’t modify the same table which you use in the SELECT part.

解决方法:

建立一张临时的中间表

delete from Person where id in (
select id from(
select t1.id as id from Person t1, Person t2 where t1.email = t2.email and t1.id > t2.id
) as tmp
);