https://www.cnblogs.com/digdeep/p/4892953.html
MySQL出现Waiting for table metadata lock的原因以及解决方法
转载于:https://www.cnblogs.com/maohuidong/p/10595826.html
https://www.cnblogs.com/digdeep/p/4892953.html
转载于:https://www.cnblogs.com/maohuidong/p/10595826.html