MySQL8.0的坑之lower_case_table_names

在安装了8.0.14之后，初始化的时候在my.cnf里设置了lower_case_table_names=1，安装好了之后，启动报错：

2019-01-28T13:24:24.919463+08:00 0 [System] [MY-010116] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.14) starting as process 245672019-01-28T13:24:25.339412+08:00 1 [ERROR] [MY-011087] [Server] Different lower_case_table_names settings for server ('1') and data dictionary ('0').2019-01-28T13:24:25.339709+08:00 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.2019-01-28T13:24:25.339903+08:00 0 [ERROR] [MY-010119] [Server] Aborting2019-01-28T13:24:26.660278+08:00 0 [System] [MY-010910] [Server] /usr/local/mysql/bin/mysqld: Shutdown complete (mysqld 8.0.14)  MySQL Community Server - GPL.

查看MySQL官方文档，有记录：

lower_case_table_names can only be configured when initializing the server. Changing the lower_case_table_names setting after the server is initialized is prohibited.

只有在初始化的时候设置 lower_case_table_names=1才有效，比如：

--initialize --lower-case-table-names=1

详见

https://bugs.mysql.com/bug.php?id=90695