使用Navicat出现you *might* want to u

报错：

you *might* want to use the less safe log_bin_trust_function_creators variable

解决方法:

   1.  mysql> SET GLOBAL log_bin_trust_function_creators = 1;

　　2.  系统启动时 --log-bin-trust-function-creators=1

　　3.  在my.ini(linux下为my.conf)文件中 [mysqld] 标记后加一行内容为 log-bin-trust-function-creators