MySQL删除死锁案例分析

https://blog.csdn.net/oyl822/article/details/42297773
https://www.centos.bz/2017/09/mysql-delete-%e5%88%a0%e9%99%a4%e8%af%ad%e5%8f%a5%e5%8a%a0%e9%94%81%e5%88%86%e6%9e%90/