MySQL 8 show databases时报错：ERROR 1449 (HY000)

 

```
mysql>show databases;
```

时显示错误：

```
ERROR 1449 (HY000): The user specified as a definer ('mysql.infoschema'@'localhost') does not exist
```

解决方案：

```
mysql> CREATE USER 'mysql.infoschema'@'localhost' IDENTIFIED BY 'password';
Query OK, 0 rows affected (0.00 sec)
```

```
mysql> GRANT SELECT ON *.* TO `mysql.infoschema`@`localhost`;
Query OK, 0 rows affected, 1 warning (0.00 sec)
```

```
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.18 sec)
```

成功解决该问题。