CREATE USER name [ [ WITH ] option [ ... ] ]
这里 option 可以是:
SUPERUSER | NOSUPERUSER
| CREATEDB | NOCREATEDB
| CREATEROLE | NOCREATEROLE
| CREATEUSER | NOCREATEUSER
| INHERIT | NOINHERIT
| LOGIN | NOLOGIN
| CONNECTION LIMIT connlimit
| [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
| VALID UNTIL 'timestamp'
| IN ROLE rolename [, ...]
| IN GROUP rolename [, ...]
| ROLE rolename [, ...]
| ADMIN rolename [, ...]
| USER rolename [, ...]
| SYSID uid CREATE USER 现在是 CREATE ROLE 的别名,参阅之获取更多信息。唯一的区别是如果把一道命令拼做 CREATE USER, 那么缺省假设有 LOGIN,而写做 CREATE ROLE 的时候,缺省是 NOLOGIN。