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'\" t
.\" Title: ALTER SUBSCRIPTION
.\" Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\" Date: 2021
.\" Manual: PostgreSQL 13.4 Documentation
.\" Source: PostgreSQL 13.4
.\" Language: English
.\"
.TH "ALTER SUBSCRIPTION" "7" "2021" "PostgreSQL 13.4" "PostgreSQL 13.4 Documentation"
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.SH "NAME"
ALTER_SUBSCRIPTION \- change the definition of a subscription
.SH "SYNOPSIS"
.sp
.nf
ALTER SUBSCRIPTION \fIname\fR CONNECTION \*(Aq\fIconninfo\fR\*(Aq
ALTER SUBSCRIPTION \fIname\fR SET PUBLICATION \fIpublication_name\fR [, \&.\&.\&.] [ WITH ( \fIset_publication_option\fR [= \fIvalue\fR] [, \&.\&.\&. ] ) ]
ALTER SUBSCRIPTION \fIname\fR REFRESH PUBLICATION [ WITH ( \fIrefresh_option\fR [= \fIvalue\fR] [, \&.\&.\&. ] ) ]
ALTER SUBSCRIPTION \fIname\fR ENABLE
ALTER SUBSCRIPTION \fIname\fR DISABLE
ALTER SUBSCRIPTION \fIname\fR SET ( \fIsubscription_parameter\fR [= \fIvalue\fR] [, \&.\&.\&. ] )
ALTER SUBSCRIPTION \fIname\fR OWNER TO { \fInew_owner\fR | CURRENT_USER | SESSION_USER }
ALTER SUBSCRIPTION \fIname\fR RENAME TO \fInew_name\fR
.fi
.SH "DESCRIPTION"
.PP
\fBALTER SUBSCRIPTION\fR
can change most of the subscription properties that can be specified in
CREATE SUBSCRIPTION (\fBCREATE_SUBSCRIPTION\fR(7))\&.
.PP
You must own the subscription to use
\fBALTER SUBSCRIPTION\fR\&. 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\&.)
.SH "PARAMETERS"
.PP
\fIname\fR
.RS 4
The name of a subscription whose properties are to be altered\&.
.RE
.PP
CONNECTION \*(Aq\fIconninfo\fR\*(Aq
.RS 4
This clause alters the connection property originally set by
CREATE SUBSCRIPTION (\fBCREATE_SUBSCRIPTION\fR(7))\&. See there for more information\&.
.RE
.PP
SET PUBLICATION \fIpublication_name\fR
.RS 4
Changes list of subscribed publications\&. See
CREATE SUBSCRIPTION (\fBCREATE_SUBSCRIPTION\fR(7))
for more information\&. By default this command will also act like
REFRESH PUBLICATION\&.
.sp
\fIset_publication_option\fR
specifies additional options for this operation\&. The supported options are:
.PP
refresh (boolean)
.RS 4
When false, the command will not try to refresh table information\&.
REFRESH PUBLICATION
should then be executed separately\&. The default is
true\&.
.RE
.sp
Additionally, refresh options as described under
REFRESH PUBLICATION
may be specified\&.
.RE
.PP
REFRESH PUBLICATION
.RS 4
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
\fBREFRESH PUBLICATION\fR
or since
\fBCREATE SUBSCRIPTION\fR\&.
.sp
\fIrefresh_option\fR
specifies additional options for the refresh operation\&. The supported options are:
.PP
copy_data (boolean)
.RS 4
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\&.)
.RE
.RE
.PP
ENABLE
.RS 4
Enables the previously disabled subscription, starting the logical replication worker at the end of transaction\&.
.RE
.PP
DISABLE
.RS 4
Disables the running subscription, stopping the logical replication worker at the end of transaction\&.
.RE
.PP
SET ( \fIsubscription_parameter\fR [= \fIvalue\fR] [, \&.\&.\&. ] )
.RS 4
This clause alters parameters originally set by
CREATE SUBSCRIPTION (\fBCREATE_SUBSCRIPTION\fR(7))\&. See there for more information\&. The allowed options are
slot_name
and
synchronous_commit
.RE
.PP
\fInew_owner\fR
.RS 4
The user name of the new owner of the subscription\&.
.RE
.PP
\fInew_name\fR
.RS 4
The new name for the subscription\&.
.RE
.SH "EXAMPLES"
.PP
Change the publication subscribed by a subscription to
insert_only:
.sp
.if n \{\
.RS 4
.\}
.nf
ALTER SUBSCRIPTION mysub SET PUBLICATION insert_only;
.fi
.if n \{\
.RE
.\}
.PP
Disable (stop) the subscription:
.sp
.if n \{\
.RS 4
.\}
.nf
ALTER SUBSCRIPTION mysub DISABLE;
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
\fBALTER SUBSCRIPTION\fR
is a
PostgreSQL
extension\&.
.SH "SEE ALSO"
CREATE SUBSCRIPTION (\fBCREATE_SUBSCRIPTION\fR(7)), DROP SUBSCRIPTION (\fBDROP_SUBSCRIPTION\fR(7)), CREATE PUBLICATION (\fBCREATE_PUBLICATION\fR(7)), ALTER PUBLICATION (\fBALTER_PUBLICATION\fR(7))
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