trusty (7) ALTER_VIEW.7.gz

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
       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

           Note
           The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.

       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 also be a direct or indirect member of the new owning
       role, and that role must have CREATE privilege on the view's schema. (These restrictions enforce that
       altering the owner doesn't do anything you couldn't do by dropping and recreating the view. However, a
       superuser can alter ownership of any view anyway.)

PARAMETERS

       name
           The name (optionally schema-qualified) of an existing view.

       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 default value associated with a view
           column is inserted into INSERT statements on the view before the view's ON INSERT rule is applied, if
           the INSERT does not specify a value for the column.

       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.

       view_option_name
           The name of a view option to be set or reset.

       view_option_name
           The new value for a view option.

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;

COMPATIBILITY

       ALTER VIEW is a PostgreSQL extension of the SQL standard.

SEE ALSO

       CREATE VIEW (CREATE_VIEW(7)), DROP VIEW (DROP_VIEW(7))