DROP SUBSCRIPTION(7) PostgreSQL 15.7 Documentation DROP SUBSCRIPTION(7)
NAME
DROP_SUBSCRIPTION - remove a subscription
SYNOPSIS
DROP SUBSCRIPTION [ IF EXISTS ] name [ CASCADE | RESTRICT ]
DESCRIPTION
DROP SUBSCRIPTION removes a subscription from the database cluster.
A subscription can only be dropped by a superuser.
DROP SUBSCRIPTION cannot be executed inside a transaction block if the
subscription is associated with a replication slot. (You can use ALTER
SUBSCRIPTION to unset the slot.)
PARAMETERS
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.
NOTES
When dropping a subscription that is associated with a replication slot
on the remote host (the normal state), DROP SUBSCRIPTION 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 DROP SUBSCRIPTION
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, DROP SUBSCRIPTION
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 31.2.1.
If a subscription is associated with a replication slot, then DROP
SUBSCRIPTION cannot be executed inside a transaction block.
EXAMPLES
Drop a subscription:
DROP SUBSCRIPTION mysub;
COMPATIBILITY
DROP SUBSCRIPTION is a PostgreSQL extension.
SEE ALSO
CREATE SUBSCRIPTION (CREATE_SUBSCRIPTION(7)), ALTER SUBSCRIPTION
(ALTER_SUBSCRIPTION(7))
PostgreSQL 15.7 2024 DROP SUBSCRIPTION(7)
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