Postgresql 从psql创建数据库：对等身份验证失败

我已经在Ubuntu上安装了Postgresql

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

当我尝试

sudo -u postgres psql createdb rates
psql: FATAL:  Peer authentication failed for user "rates"

---

我想为角色名称标记创建rates db。如何执行此操作？

createdb

不是SQL命令，因此您不从数据库客户端执行，而是从shell执行

试一试

或

sudo -u postgres psql -c 'CREATE DATABASE rates'

sudo -u postgres createdb rates