> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/internals/views/view-pg-group.md).

# 53.9. pg\_group \#

檢視表 `pg_group` 為了向後相容而存在：它模擬 PostgreSQL 8.1 版之前存在的系統目錄。它顯示所有標記為非 `rolcanlogin` 之角色的名稱與成員，這大致等同於作為群組使用的角色集合。

**表 53.9. `pg_group` 欄位**

| <p>欄位型別</p><p>說明</p>                                                                                                                                                  |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>groname</code> <code>name</code> (references <a href="/pages/nyEMOe5gQKgypFQTDbjS"><code>pg\_authid</code></a>.<code>rolname</code>)</p><p>群組名稱</p>          |
| <p><code>grosysid</code> <code>oid</code> (references <a href="/pages/nyEMOe5gQKgypFQTDbjS"><code>pg\_authid</code></a>.<code>oid</code>)</p><p>此群組的 ID</p>           |
| <p><code>grolist</code> <code>oid\[]</code> (references <a href="/pages/nyEMOe5gQKgypFQTDbjS"><code>pg\_authid</code></a>.<code>oid</code>)</p><p>包含此群組中角色 ID 的陣列</p> |

<br>

***

原文：[PostgreSQL 18.6 Documentation](https://www.postgresql.org/docs/18/view-pg-group.html)（原文版本：18.6；核對日期：2026-09-06）


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