mysql 5.7：show_compatibility_56

show_compatibility_56 - rudy gao - CSDN博客

https://blog.csdn.net/rudygao/article/details/50403107

[SOLVED] ERROR 3167 (HY000) The 'INFORMATION_SCHEMA.GLOBAL_VARIABLES' feature is disabled see the documentation for 'show_compatibility_56'
http://mysql-tools.com/home/1-mysql/125-showcompatibility56-mysql-57-connection-problem.html