psql: FATAL: role “appleyuchi” does not exist與修改默認密碼

$ psql

報錯如下:

psql: FATAL: role “appleyuchi” does not exist

 

使用：

sudo -s -u postgres

就會把當前用戶切換成postgres

postgres=# ALTER USER postgres WITH PASSWORD 'postgres';

上面這句話的意思是，

給postgres這個賬戶的密碼設置爲postgres