# 51.53. pg\_subscription\_rel

目錄 pg\_subscription\_rel 包含每個訂閱中每個複寫關係的狀態。這是多對多的關連情況。

在執行 CREATE SUBSCRIPTION 或 ALTER SUBSCRIPTION ... REFRESH PUBLICATION 之後才會更新，此目錄僅會包含已知的訂閱資料表。

#### **Table 51.53. `pg_subscription_rel` Columns**

| <p>Column Type</p><p>Description</p>                                                                                                                                                                                   |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>srsubid</code> <code>oid</code> (references <a href="https://www.postgresql.org/docs/13/catalog-pg-subscription.html"><code>pg\_subscription</code></a>.<code>oid</code>)</p><p>Reference to subscription</p> |
| <p><code>srrelid</code> <code>oid</code> (references <a href="https://www.postgresql.org/docs/13/catalog-pg-class.html"><code>pg\_class</code></a>.<code>oid</code>)</p><p>Reference to relation</p>                   |
| <p><code>srsubstate</code> <code>char</code></p><p>State code: <code>i</code> = initialize, <code>d</code> = data is being copied, <code>s</code> = synchronized, <code>r</code> = ready (normal replication)</p>      |
| <p><code>srsublsn</code> <code>pg\_lsn</code></p><p>Remote LSN of the state change used for synchronization coordination when in <code>s</code> or <code>r</code> states, otherwise null</p>                           |


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