51.53. `pg_subscription_rel`
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## 51.53. `pg_subscription_rel`

The catalog `pg_subscription_rel` contains the state for each replicated relation in each subscription. This is a many-to-many mapping.

This catalog only contains tables known to the subscription after running either `CREATE SUBSCRIPTION` or `ALTER SUBSCRIPTION ... REFRESH PUBLICATION`.

Table 51.53. `pg_subscription_rel` Columns

Column Type Description
`srsubid` `oid` (references `pg_subscription`.`oid`) Reference to subscription
`srrelid` `oid` (references `pg_class`.`oid`) Reference to relation
`srsubstate` `char` State code: `i` = initialize, `d` = data is being copied, `s` = synchronized, `r` = ready (normal replication)
`srsublsn` `pg_lsn` Remote LSN of the state change used for synchronization coordination when in `s` or `r` states, otherwise null

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