MySQL创建函数异常：This function has none of DETERMINISTIC......

在MySQL8.0.19上创建函数，报错：

ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)

原因：未开启函数功能。

查询：show variables like '%func%';

如下图：

开启函数功能：set global log_bin_trust_function_creators=1;

 再次查询，如下图：

这样，就可以创建函数了。

备注：这个动态设置的方式会在服务重启后失效。因此，要在my.ini配置文件中加上该配置log_bin_trust_function_creators=1。