DROP_SUBSCRIPTION - remove a subscription

DROPSUBSCRIPTION is a PostgreSQL extension.

DROPSUBSCRIPTION removes a subscription from the database cluster. To execute this command the user must be the owner of the subscription. DROPSUBSCRIPTION cannot be executed inside a transaction block if the subscription is associated with a replication slot. (You can use ALTERSUBSCRIPTION to unset the slot.)

Drop a subscription: DROP SUBSCRIPTION mysub;

DROP_SUBSCRIPTION - remove a subscription

When dropping a subscription that is associated with a replication slot on the remote host (the normal state), DROPSUBSCRIPTION will connect to the remote host and try to drop the replication slot (and any remaining table synchronization slots) as part of its operation. This is necessary so that the resources allocated for the subscription on the remote host are released. If this fails, either because the remote host is not reachable or because the remote replication slot cannot be dropped or does not exist or never existed, the DROPSUBSCRIPTION command will fail. To proceed in this situation, first disable the subscription by executing ALTER SUBSCRIPTION ... DISABLE, and then disassociate it from the replication slot by executing ALTER SUBSCRIPTION ... SET (slot_name = NONE). After that, DROPSUBSCRIPTION will no longer attempt any actions on a remote host. Note that if the remote replication slot still exists, it (and any related table synchronization slots) should then be dropped manually; otherwise it/they will continue to reserve WAL and might eventually cause the disk to fill up. See also Section 29.2.1. If a subscription is associated with a replication slot, then DROPSUBSCRIPTION cannot be executed inside a transaction block.

name The name of a subscription to be dropped. CASCADE RESTRICT These key words do not have any effect, since there are no dependencies on subscriptions.

CREATE SUBSCRIPTION (CREATE_SUBSCRIPTION(7)), ALTER SUBSCRIPTION (ALTER_SUBSCRIPTION(7)) PostgreSQL 17.5 2025 DROPSUBSCRIPTION(7)

DROP SUBSCRIPTION [ IF EXISTS ] name [ CASCADE | RESTRICT ]