52.9. pg_auth_members
| Up | Chapter 52. System Catalogs | Home |

## 52.9. 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.

Table 52.9. pg_auth_members Columns

Column Type Description
`oid` oid Row identifier
`roleid` oid (references pg_authid.`oid`) ID of a role that has a member
`member` oid (references pg_authid.`oid`) ID of a role that is a member of `roleid`
`grantor` oid (references pg_authid.`oid`) ID of the role that granted this membership
`admin_option` bool True if `member` can grant membership in `roleid` to others
`inherit_option` bool True if the member automatically inherits the privileges of the granted role
`set_option` bool True if the member can SET ROLE to the granted role

| Up |
| Home |