SYSTEM VIEW · 系统视图

pg_roles

The view pg_roles provides access to information about database roles. This is simply a publicly readable view of pg_authid that blanks out the password field.

首次收录 PG 9.0最近收录 PG 19当前字段 13

9.0 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19^β3

已与 PostgreSQL 18.6 实例逐字段核对 · 原始实测记录 ↗

字段结构 PostgreSQL 18

pg_roles

字段 / COLUMN	类型 / TYPE	说明 / DESCRIPTION
`rolname`	`name`	Role name
`rolsuper`	`boolean`文档原写法：`bool`	Role has superuser privileges
`rolinherit`	`boolean`文档原写法：`bool`	Role automatically inherits privileges of roles it is a member of
`rolcreaterole`	`boolean`文档原写法：`bool`	Role can create more roles
`rolcreatedb`	`boolean`文档原写法：`bool`	Role can create databases
`rolcanlogin`	`boolean`文档原写法：`bool`	Role can log in. That is, this role can be given as the initial session authorization identifier
`rolreplication`	`boolean`文档原写法：`bool`	Role is a replication role. A replication role can initiate replication connections and create and drop replication slots.
`rolconnlimit`	`integer`文档原写法：`int4`	For roles that can log in, this sets maximum number of concurrent connections this role can make. -1 means no limit.
`rolpassword`	`text`	Not the password (always reads as ********)
`rolvaliduntil`	`timestamp with time zone`文档原写法：`timestamptz`	Password expiry time (only used for password authentication); null if no expiration
`rolbypassrls`	`boolean`文档原写法：`bool`	Role bypasses every row-level security policy, see Section 5.9 for more information.
`rolconfig`	`text[]`	Role-specific defaults for run-time configuration variables
`oid`	`oid`	ID of role引用：`pg_authid.oid`

标记“隐式列”的字段不包含在 SELECT * 中；部分早期统计视图由同版本源码补全，额外来源会显示在字段说明中。

字段演化矩阵

悬停查看字段类型

存在新增 / 类型或属性变化移除

字段 / COLUMN	9.0	9.1	9.2	9.3	9.4	9.5	9.6	10	11	12	13	14	15	16	17	18	19
`rolname`
`rolsuper`
`rolinherit`
`rolcreaterole`
`rolcreatedb`
`rolcatupdate`						−	–	–	–	–	–	–	–	–	–	–	–
`rolcanlogin`
`rolconnlimit`
`rolpassword`
`rolvaliduntil`
`rolconfig`
`oid`
`rolreplication`	–
`rolbypassrls`	–	–	–	–	–

9.0 是收录基线；基线中已存在的字段不标记为新增。矩阵按字段名称对齐，重命名显示为旧字段移除与新字段新增。

演化时间线

相邻大版本的变化

PostgreSQL 19 ← 18

1 处字段说明更新

PostgreSQL 17 ← 16

1 处字段说明更新

PostgreSQL 14 ← 13

1 处字段说明更新

PostgreSQL 12 ← 11

1 处字段说明更新目录说明更新

PostgreSQL 9.6 ← 9.5

1 处字段说明更新

PostgreSQL 9.5 ← 9.4

+ rolbypassrls− rolcatupdate

PostgreSQL 9.1 ← 9.0

+ rolreplication

比较任意两个版本

起始版本 / FROM目标版本 / TO包含描述更新

选择两个版本，查看字段的新增、移除与类型变化。交互比较需要 JavaScript；演化时间线可直接阅读。