[centos@s101 /home/centos]$su postgres
[postgres@s101 /home/centos]$cd /
[postgres@s101 /]$psql -U postgres -d postgres -p 5432

用户创建

CREATE ROLE pguser WITH ENCRYPTED PASSWORD '123456';

postgres=# CREATE ROLE pguser WITH ENCRYPTED PASSWORD '123456';
CREATE ROLE

创建表空间目录

[postgres@s101 /var/lib/pgsql/13]$mkdir -p /var/lib/pgsql/13/pg_tbs/tbs_mydb

表空间创建

postgres=# create tablespace tbs_mydb owner pguser location '/var/lib/pgsql/13/pg_tbs/tbs_mydb';
CREATE TABLESPACE

数据库创建

CREATE DATABASE "mydb"
WITH
  OWNER = "pguser"
  TEMPLATE = "template0"
  ENCODING = 'UTF8'
  TABLESPACE = "tbs_mydb"
;

COMMENT ON DATABASE "mydb" IS '测试数据库';

赋予权限

postgres=# grant all on database mydb to pguser with grant option;
GRANT
postgres=# grant all on tablespace tbs_mydb to pguser ;
GRANT

需要给用户登录权限，不然会报错

postgres=# ALTER ROLE pguser LOGIN;
ALTER ROLE

测试登录

[postgres@s101 /]$psql -h localhost -p 5432 mydb pguser
Password for user pguser:
psql (9.2.24, server 13.3)
WARNING: psql version 9.2, server version 13.0.
Some psql features might not work.
Type "help" for help.

mydb=>

查看表空间和用户   \db

postgres=# \db
List of tablespaces
Name | Owner | Location
------------+----------+-----------------------------------
pg_default | postgres |
pg_global | postgres |
tbs_mydb | pguser | /var/lib/pgsql/13/pg_tbs/tbs_mydb
(3 rows)