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Navicat 链接mysql 数据库报错，

使用mysql终端登陆 show 命令也报错

ERROR 1356 (HY000): View 'information_schema.COLUMNS' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them

ERROR 1356 (HY000): View 'information_schema.SCHEMATA' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them

报错信息是没有权限，隐约记得改过mysql.user 表的mysql.infoschema权限信息，改的哪个忘了，导致关机重新开机后报上述错误，information_schema库下面的所有视图不能访问

不知道mysql.infoschema的哪个权限跟information_schema的查询有关，以为是Show_view_priv，Show_db_priv，Process_priv影响的但是改完后仍报错，最后尝试修改Select_priv 能正常访问了

执行语句

use mysql;

select * from user where User ='mysql.infoschema';

update user set Select_priv = 'Y' where User = 'mysql.infoschema';

flush privileges;