# 51.9. pg\_auth\_members

目錄 pg\_auth\_members 顯示角色之間的成員資格關連。允許任何非循環的關連。

由於角色身份是叢集範圍的，因此 pg\_auth\_members 在叢集的所有資料庫之間共享：每個叢集只有一個 pg\_auth\_members 副本，而不是每個資料庫一個副本。

**Table 51.9. `pg_auth_members` Columns**

| Name           | Type   | References                                                     | Description                       |
| -------------- | ------ | -------------------------------------------------------------- | --------------------------------- |
| `roleid`       | `oid`  | \`\`[`pg_authid`](/internals/system-catalogs/pg_authid.md).oid | 具有成員的角色 ID                        |
| `member`       | `oid`  | [`pg_authid`](/internals/system-catalogs/pg_authid.md).oid     | 作為 roleid 成員的角色 ID                |
| `grantor`      | `oid`  | \`\`[`pg_authid`](/internals/system-catalogs/pg_authid.md).oid | 授予此成員資格的角色 ID                     |
| `admin_option` | `bool` |                                                                | 如果成員可以將 roleid 的成員資格授予其他人，則為 True |


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