迁移数据库时遇到错误:
Error Code: 1418. 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)
解释:
默认情况下function的创建是禁止的。
原来是因为在主从复制的两台MySQL服务器中开启了二进制日志选项log-bin,slave会从master复制数据,而一些操作,比如function所得的结果在master和slave上可能不同,所以存在潜在的安全隐患。因此,在默认情况下回阻止function的创建。
解决办法:
在CentOS终端上运行:
# mysql -uroot -p你的密码
MariaDB [(none)]> show variables like '%func%';
+---------------------------------+-------+
| Variable_name | Value |
+---------------------------------+-------+
| log_bin_trust_function_creators | OFF |
+---------------------------------+-------+
1 row in set (0.00 sec)
MariaDB [(none)]> set global log_bin_trust_function_creators=1;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> show variables like '%func%';
+---------------------------------+-------+
| Variable_name | Value |
+---------------------------------+-------+
| log_bin_trust_function_creators | ON |
+---------------------------------+-------+
1 row in set (0.00 sec)
通过 set global log_bin_trust_function_creators=1; 的设置,在重启后失效。永久办法:
windows下my.ini
[mysqld]加上log_bin_trust_function_creators=1 linux下/etc/my.cnf下my.cnf
[mysqld]加上log_bin_trust_function_creators=1