ALTER VIEW(7) PostgreSQL 18.6 Documentation ALTER VIEW(7) NAME ALTER_VIEW - change the definition of a view SYNOPSIS ALTER VIEW [ IF EXISTS ] name ALTER [ COLUMN ] column_name SET DEFAULT expression ALTER VIEW [ IF EXISTS ] name ALTER [ COLUMN ] column_name DROP DEFAULT ALTER VIEW [ IF EXISTS ] name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER } ALTER VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER VIEW [ IF EXISTS ] name RENAME TO new_name ALTER VIEW [ IF EXISTS ] name SET SCHEMA new_schema ALTER VIEW [ IF EXISTS ] name SET ( view_option_name [= view_option_value] [, ... ] ) ALTER VIEW [ IF EXISTS ] name RESET ( view_option_name [, ... ] ) DESCRIPTION ALTER VIEW changes various auxiliary properties of a view. (If you want to modify the view's defining query, use CREATE OR REPLACE VIEW.) You must own the view to use ALTER VIEW. To change a view's schema, you must also have CREATE privilege on the new schema. 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 view's schema. (These restrictions enforce that al- tering the owner doesn't do anything you couldn't do by dropping and recre- ating the view. However, a superuser can alter ownership of any view any- way.) PARAMETERS name The name (optionally schema-qualified) of an existing view. column_name Name of an existing column. new_column_name New name for an existing column. IF EXISTS Do not throw an error if the view does not exist. A notice is issued in this case. SET/DROP DEFAULT These forms set or remove the default value for a column. A view col- umn's default value is substituted into any INSERT or UPDATE command whose target is the view, before applying any rules or triggers for the view. The view's default will therefore take precedence over any de- fault values from underlying relations. new_owner The user name of the new owner of the view. new_name The new name for the view. new_schema The new schema for the view. SET ( view_option_name [= view_option_value] [, ... ] ) RESET ( view_option_name [, ... ] ) Sets or resets a view option. Currently supported options are: check_option (enum) Changes the check option of the view. The value must be local or cascaded. security_barrier (boolean) Changes the security-barrier property of the view. The value must be a Boolean value, such as true or false. security_invoker (boolean) Changes the security-invoker property of the view. The value must be a Boolean value, such as true or false. NOTES For historical reasons, ALTER TABLE can be used with views too; but the only variants of ALTER TABLE that are allowed with views are equivalent to the ones shown above. EXAMPLES To rename the view foo to bar: ALTER VIEW foo RENAME TO bar; To attach a default column value to an updatable view: CREATE TABLE base_table (id int, ts timestamptz); CREATE VIEW a_view AS SELECT * FROM base_table; ALTER VIEW a_view ALTER COLUMN ts SET DEFAULT now(); INSERT INTO base_table(id) VALUES(1); -- ts will receive a NULL INSERT INTO a_view(id) VALUES(2); -- ts will receive the current time COMPATIBILITY ALTER VIEW is a PostgreSQL extension of the SQL standard. SEE ALSO CREATE VIEW (CREATE_VIEW(7)), DROP VIEW (DROP_VIEW(7)) PostgreSQL 18.6 2026 ALTER VIEW(7)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | NOTES | EXAMPLES | COMPATIBILITY | SEE ALSO
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