标签：nbsp china sch view col space AC mysql8 lease
https://www.oschina.net/news/95325/mysql-8-0-ga-released
http://blog.itpub.net/28218939/viewspace-2154297/
mysql8新特性(一)
原文地址：https://www.cnblogs.com/igoodful/p/9189883.html
