数据库报错 RROR 1449 (HY000): The user specified as a definer ('mysql.infoschema'@'localhost') does not exist
MySQL8 误删除了几个用户，导致执行 show databases 都会出错
mysql> show databases;
ERROR 1449 (HY000): The user specified as a definer ('mysql.infoschema'@'localhost') does not exist
修复办法呢，很简单，运行下面的语句
grant select on *.* TO 'mysql.infoschema'@'localhost';
然后就可以愉快的使用了
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