DROP SUBSCRIPTION(7) PostgreSQL 10.1 Documentation DROP SUBSCRIPTION(7)NAMEDROP_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 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,
disassociate the subscription 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 should then be
dropped manually; otherwise it 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 10.1 2017 DROP SUBSCRIPTION(7)