ALTER PUBLICATION
ALTER PUBLICATION
ALTER PUBLICATION - change the definition of a publication
Synopsis
ALTER PUBLICATIONname
ADDpublication_object
[, ...] ALTER PUBLICATIONname
SETpublication_object
[, ...] ALTER PUBLICATIONname
DROPpublication_object
[, ...] ALTER PUBLICATIONname
SET (publication_parameter
[=value
] [, ... ] ) ALTER PUBLICATIONname
OWNER TO {new_owner
| CURRENT_ROLE | CURRENT_USER | SESSION_USER } ALTER PUBLICATIONname
RENAME TOnew_name
wherepublication_object
is one of: TABLE [ ONLY ]table_name
[ * ] [ (column_name
[, ... ] ) ] [ WHERE (expression
) ] [, ... ] TABLES IN SCHEMA {schema_name
| CURRENT_SCHEMA } [, ... ]
Description
The command
ALTER PUBLICATION
can change the attributes
of a publication.
The first three variants change which tables/schemas are part of the
publication. The
SET
clause will replace the list of
tables/schemas in the publication with the specified list; the existing
tables/schemas that were present in the publication will be removed. The
ADD
and
DROP
clauses will add and
remove one or more tables/schemas from the publication. Note that adding
tables/schemas to a publication that is already subscribed to will require an
ALTER SUBSCRIPTION ... REFRESH PUBLICATION
action on the
subscribing side in order to become effective. Note also that
DROP TABLES IN SCHEMA
will not drop any schema tables
that were specified using
FOR TABLE
/
ADD TABLE
, and the combination of
DROP
with a
WHERE
clause is not allowed.
The fourth variant of this command listed in the synopsis can change all of the publication properties specified in CREATE PUBLICATION . Properties not mentioned in the command retain their previous settings.
The remaining variants change the owner and the name of the publication.
You must own the publication to use
ALTER PUBLICATION
.
Adding a table to a publication additionally requires owning that table.
The
ADD TABLES IN SCHEMA
and
SET TABLES IN SCHEMA
to a publication requires the
invoking user to be a superuser. To alter the owner, you must also be a
direct or indirect member of the new owning role. The new owner must have
CREATE
privilege on the database. Also, the new owner
of a
FOR ALL TABLES
or
FOR TABLES IN SCHEMA
publication must be a superuser. However, a superuser can
change the ownership of a publication regardless of these restrictions.
Adding/Setting any schema when the publication also publishes a table with a column list, and vice versa is not supported.
Parameters
-
name
-
The name of an existing publication whose definition is to be altered.
-
table_name
-
Name of an existing table. If
ONLY
is specified before the table name, only that table is affected. IfONLY
is not specified, the table and all its descendant tables (if any) are affected. Optionally,*
can be specified after the table name to explicitly indicate that descendant tables are included.Optionally, a column list can be specified. See CREATE PUBLICATION for details. Note that a subscription having several publications in which the same table has been published with different column lists is not supported. See Section 31.4.1 for details of potential problems when altering column lists.
If the optional
WHERE
clause is specified, rows for which theexpression
evaluates to false or null will not be published. Note that parentheses are required around the expression. Theexpression
is evaluated with the role used for the replication connection. -
schema_name
-
Name of an existing schema.
-
SET (
publication_parameter
[=value
] [, ... ] ) -
This clause alters publication parameters originally set by CREATE PUBLICATION . See there for more information.
-
new_owner
-
The user name of the new owner of the publication.
-
new_name
-
The new name for the publication.
Examples
Change the publication to publish only deletes and updates:
ALTER PUBLICATION noinsert SET (publish = 'update, delete');
Add some tables to the publication:
ALTER PUBLICATION mypublication ADD TABLE users (user_id, firstname), departments;
Change the set of columns published for a table:
ALTER PUBLICATION mypublication SET TABLE users (user_id, firstname, lastname), TABLE departments;
Add schemas
marketing
and
sales
to the publication
sales_publication
:
ALTER PUBLICATION sales_publication ADD TABLES IN SCHEMA marketing, sales;
Add tables
users
,
departments
and schema
production
to the publication
production_publication
:
ALTER PUBLICATION production_publication ADD TABLE users, departments, TABLES IN SCHEMA production;
Compatibility
ALTER PUBLICATION
is a
PostgreSQL
extension.