ALTER USER

ALTER USER — 更改一个数据库角色

语法

ALTER USER role_specification [ WITH ] option [ ... ]

其中 option 可以是：

      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | BYPASSRLS | NOBYPASSRLS
    | CONNECTION LIMIT connlimit
    | [ ENCRYPTED ] PASSWORD 'password' | PASSWORD NULL
    | VALID UNTIL 'timestamp'

ALTER USER name RENAME TO new_name

ALTER USER { role_specification | ALL } SET configuration_parameter { TO | = } { value | DEFAULT }
ALTER USER { role_specification | ALL } SET configuration_parameter FROM CURRENT
ALTER USER { role_specification | ALL } RESET configuration_parameter
ALTER USER { role_specification | ALL } RESET ALL

其中 role_specification 可以是：

    role_name
  | CURRENT_USER
  | SESSION_USER

描述

ALTER USER现在是 ALTER ROLE 的一种别名。

兼容性

ALTER USER语句是一种 PostgreSQL 扩展。SQL 标准把用户的定义留给实现来处理。