今天在mysql中创建函数的时候，报错如下：
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)
出现这个错误的原因是，不知道啥时候开启了bin-log。
解决办法：
set global log_bin_trust_function_creators=TRUE;