升级MySQL到5.x后
使用：
GRANT ALL ON database.* TO some_user@'%' IDENTIFIED BY 'newpwd';
创建的用户。
使用旧的mysql clinet通过网络连接数据库总是提示：
shell> mysqlClient does not support authentication protocol requestedby server; consider upgrading MySQL client
解决办法：
mysql> SET PASSWORD FOR -> 'some_user'@'some_host' = OLD_PASSWORD('newpwd');
or
mysql> UPDATE mysql.user SET Password = OLD_PASSWORD('newpwd') -> WHERE Host = 'some_host' AND User = 'some_user';mysql> FLUSH PRIVILEGES;这样就OK了
