删除用户后尝试访问psql，但仍然被要求输入删除用户的密码

Question

最初我有

Role name  |                         Attributes                         | Member of 
------------+------------------------------------------------------------+-----------
 hezhenghao | Create DB                                                  | {}
 postgres   | Superuser, Create role, Create DB, Replication, Bypass RLS | {}

然后我输入

postgres=# REASSIGN OWNED BY hezhenghao to postgres
postgres-# ;
REASSIGN OWNED
postgres=# REASSIGN OWNED BY hezhenghao to postgres;                                                                                                 REASSIGN OWNED
postgres=# DROP OWNED BY hezhenghao;
DROP OWNED
postgres=# DROP USER hezhenghao;
DROP ROLE

现在只有一个用户

postgres=# \du
                                   List of roles
 Role name |                         Attributes                         | Member of 
-----------+------------------------------------------------------------+-----------
 postgres  | Superuser, Create role, Create DB, Replication, Bypass RLS | {}

但是，当我在终端中输入psql时，仍然会要求我输入Password for user hezhenghao: 然后我会得到psql: FATAL: password authentication failed for user "hezhenghao"

我是postgres的新手，所以我不太了解这里发生了什么。有人可以帮我吗？

Answer 1

如果未使用-U指定用户，则psql将默认为当前登录用户的用户名。在这种情况下，听起来该用户为hezhenghao。使用-U postgres以postgres用户身份登录。