SYSTEM CATALOG · 系统目录

pg_auth_members

The catalog pg_auth_members shows the membership relations between roles. Any non-circular set of relationships is allowed. Because user identities are cluster-wide, pg_auth_members is shared across all databases of a cluster: there is only one copy of pg_auth_members per cluster, not one per database.

首次收录 PG 9.0最近收录 PG 19当前字段 7

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_auth_members

字段 / COLUMN	类型 / TYPE	说明 / DESCRIPTION
`oid`	`oid`NOT NULL	Row identifier
`roleid`	`oid`NOT NULL	ID of a role that has a member引用：`pg_authid.oid`
`member`	`oid`NOT NULL	ID of a role that is a member of roleid引用：`pg_authid.oid`
`grantor`	`oid`NOT NULL	ID of the role that granted this membership引用：`pg_authid.oid`
`admin_option`	`boolean`NOT NULL文档原写法：`bool`	True if member can grant membership in roleid to others
`inherit_option`	`boolean`NOT NULL文档原写法：`bool`	True if the member automatically inherits the privileges of the granted role
`set_option`	`boolean`NOT NULL文档原写法：`bool`	True if the member can SET ROLE to the granted role

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。

通用系统列 6

PostgreSQL 提供的系统属性，通常不在 SELECT * 中展开。单独保留，不与普通字段混算。

字段	类型	attnum
`tableoid`	`oid`	-6
`cmax`	`cid`	-5
`xmax`	`xid`	-4
`cmin`	`cid`	-3
`xmin`	`xid`	-2
`ctid`	`tid`	-1

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
`roleid`
`member`
`grantor`
`admin_option`
`oid`	–	–	–	–	–	–	–	–	–	–	–	–	–
`inherit_option`	–	–	–	–	–	–	–	–	–	–	–	–	–
`set_option`	–	–	–	–	–	–	–	–	–	–	–	–	–

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 16 ← 15

+ oid+ inherit_option+ set_option

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。