在linux下,用root用户成功登陆连接mysql后,用show databases或者其它sql语句全部都出错 ，错误信息是Ignoring query to other database. 用普通用户登陆连接mysql后，show databases语句可以用，但是其它创建语句不可以用， 这是为什么啊？该怎么解决？谢谢。

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