alter_publication(7)

NAME#

ALTER_PUBLICATION - change the definition of a publication

SYNOPSIS#

ALTER PUBLICATION \nname\n ADD \npublication_object\n [, ...]
ALTER PUBLICATION \nname\n SET \npublication_object\n [, ...]
ALTER PUBLICATION \nname\n DROP \npublication_drop_object\n [, ...]
ALTER PUBLICATION \nname\n SET ( \npublication_parameter\n [= \nvalue\n] [, ... ] )
ALTER PUBLICATION \nname\n OWNER TO { \nnew_owner\n | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
ALTER PUBLICATION \nname\n RENAME TO \nnew_name\n
where \npublication_object\n is one of:
\n
    TABLE \ntable_and_columns\n [, ... ]
\n
    TABLES IN SCHEMA { \nschema_name\n | CURRENT_SCHEMA } [, ... ]
and \npublication_drop_object\n is one of:
\n
    TABLE [ ONLY ] \ntable_name\n [ * ] [, ... ]
\n
    TABLES IN SCHEMA { \nschema_name\n | CURRENT_SCHEMA } [, ... ]
and \ntable_and_columns\n is:
\n
    [ ONLY ] \ntable_name\n [ * ] [ ( \ncolumn_name\n [, ... ] ) ] [ WHERE ( \nexpression\n ) ]

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.

The fourth variant of this command listed in the synopsis can change all of the publication properties specified in CREATE PUBLICATION (CREATE_PUBLICATION(7)). 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.

PARAMETERS#

name

table_name

Optionally, a column list can be specified. See CREATE PUBLICATION (CREATE_PUBLICATION(7)) 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 Warning: Combining Column Lists from Multiple Publications 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

SET ( publication_parameter [= value] [, ... ] )

new_owner

new_name

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.

SEE ALSO#

CREATE PUBLICATION (CREATE_PUBLICATION(7)), DROP PUBLICATION (DROP_PUBLICATION(7)), CREATE SUBSCRIPTION (CREATE_SUBSCRIPTION(7)), ALTER SUBSCRIPTION (ALTER_SUBSCRIPTION(7))