ALTER PUBLICATIONALTER PUBLICATION7SQL - Language StatementsALTER PUBLICATIONchange the definition of a publication
ALTER PUBLICATION name ADD publication_object [, ...]
ALTER PUBLICATION name SET publication_object [, ...]
ALTER PUBLICATION name DROP publication_object [, ...]
ALTER PUBLICATION name SET ( publication_parameter [= value] [, ... ] )
ALTER PUBLICATION name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
ALTER PUBLICATION name RENAME TO new_namewhere publication_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
. 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 be able to SET ROLE to the
new owning role, and that role 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.
Parametersname
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. If ONLY 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 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
for details of
potential problems when altering column lists.
If the optional WHERE clause is specified, rows for
which the expression
evaluates to false or null will not be published. Note that parentheses
are required around the expression. The
expression 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
. 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;
CompatibilityALTER PUBLICATION is a PostgreSQL
extension.
See Also