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DROP SUBSCRIPTION(7)              PostgreSQL 12.3 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 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 30.2.1.

       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 12.3                                2020                          DROP SUBSCRIPTION(7)


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