> 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/catalogs/catalog-pg-sequence.md).

# 52.47. pg\_sequence \#

系統目錄 `pg_sequence` 包含序列的資訊。序列的部分資訊，例如名稱與 schema，位於 [`pg_class`](/internals/catalogs/catalog-pg-class.md)

**表 52.47. `pg_sequence` 欄位**

| <p>欄位型別</p><p>說明</p>                                                                                                                                                                                                              |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>seqrelid</code> <code>oid</code> (references <a href="/pages/b1fii6hWVNacZFXaxWON"><code>pg\_class</code></a>.<code>oid</code>)</p><p>此序列在 <a href="/pages/b1fii6hWVNacZFXaxWON"><code>pg\_class</code></a> 中項目的 OID</p> |
| <p><code>seqtypid</code> <code>oid</code> (references <a href="/pages/Rnbzy6x669U98OjJh3D7"><code>pg\_type</code></a>.<code>oid</code>)</p><p>序列的資料型別</p>                                                                         |
| <p><code>seqstart</code> <code>int8</code></p><p>序列的起始值</p>                                                                                                                                                                       |
| <p><code>seqincrement</code> <code>int8</code></p><p>序列的遞增值</p>                                                                                                                                                                   |
| <p><code>seqmax</code> <code>int8</code></p><p>序列的最大值</p>                                                                                                                                                                         |
| <p><code>seqmin</code> <code>int8</code></p><p>序列的最小值</p>                                                                                                                                                                         |
| <p><code>seqcache</code> <code>int8</code></p><p>序列的快取大小</p>                                                                                                                                                                      |
| <p><code>seqcycle</code> <code>bool</code></p><p>序列是否循環</p>                                                                                                                                                                       |

<br>

***

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


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