ALTER SUBSCRIPTION — change the definition of a subscription
ALTER SUBSCRIPTIONname
CONNECTION 'conninfo
' ALTER SUBSCRIPTIONname
SET PUBLICATIONpublication_name
[, ...] [ WITH (set_publication_option
[=value
] [, ... ] ) ] ALTER SUBSCRIPTIONname
REFRESH PUBLICATION [ WITH (refresh_option
[=value
] [, ... ] ) ] ALTER SUBSCRIPTIONname
ENABLE ALTER SUBSCRIPTIONname
DISABLE ALTER SUBSCRIPTIONname
SET (subscription_parameter
[=value
] [, ... ] ) ALTER SUBSCRIPTIONname
OWNER TO {new_owner
| CURRENT_USER | SESSION_USER } ALTER SUBSCRIPTIONname
RENAME TOnew_name
ALTER SUBSCRIPTION
can change most of the subscription
properties that can be specified
in CREATE SUBSCRIPTION.
You must own the subscription to use ALTER SUBSCRIPTION
.
To alter the owner, you must also be a direct or indirect member of the
new owning role. The new owner has to be a superuser.
(Currently, all subscription owners must be superusers, so the owner checks
will be bypassed in practice. But this might change in the future.)
name
The name of a subscription whose properties are to be altered.
CONNECTION 'conninfo
'
This clause alters the connection property originally set by CREATE SUBSCRIPTION. See there for more information.
SET PUBLICATION publication_name
Changes list of subscribed publications. See
CREATE SUBSCRIPTION for more information.
By default this command will also act like REFRESH
PUBLICATION
.
set_publication_option
specifies additional
options for this operation. The supported options are:
refresh
(boolean
)
When false, the command will not try to refresh table information.
REFRESH PUBLICATION
should then be executed separately.
The default is true
.
Additionally, refresh options as described
under REFRESH PUBLICATION
may be specified.
REFRESH PUBLICATION
Fetch missing table information from publisher. This will start
replication of tables that were added to the subscribed-to publications
since the last invocation of REFRESH PUBLICATION
or
since CREATE SUBSCRIPTION
.
refresh_option
specifies additional options for the
refresh operation. The supported options are:
copy_data
(boolean
)
Specifies whether the existing data in the publications that are
being subscribed to should be copied once the replication starts.
The default is true
. (Previously subscribed
tables are not copied.)
ENABLE
Enables the previously disabled subscription, starting the logical replication worker at the end of transaction.
DISABLE
Disables the running subscription, stopping the logical replication worker at the end of transaction.
SET ( subscription_parameter
[= value
] [, ... ] )
This clause alters parameters originally set by
CREATE SUBSCRIPTION. See there for more
information. The allowed options are slot_name
and
synchronous_commit
new_owner
The user name of the new owner of the subscription.
new_name
The new name for the subscription.
Change the publication subscribed by a subscription to
insert_only
:
ALTER SUBSCRIPTION mysub SET PUBLICATION insert_only;
Disable (stop) the subscription:
ALTER SUBSCRIPTION mysub DISABLE;
ALTER SUBSCRIPTION
is a LightDB
extension.