mysql 参数sql_log_bin

SET sql_log_bin = {0|1}

The sql_log_bin variable controls whether logging to the binary log is done. The default value is 1 (do logging). To change logging for the current session, change the session value of this variable. The session user must have the SUPER privilege to set this
variable. Set this variable to 0 for a session to temporarily disable binary logging while making changes to the master which you do not want to replicate to the slave.

As of MySQL 5.5, sql_log_bin can be set as a global or session variable. Setting sql_log_bin globally is only detected when a new session is started. Any sessions previously running are not impacted when setting sql_log_bin globally.

此参数设置的目的一般在主从复制场景，禁用主库的一些操作，比如修改表，权限等，

set sql_log_bin=0;

alter table mytable engine=innodb row_format=compressed;

create user u1 identified by 'china';

set sql_log_bin=1;