ALTER MATERIALIZED VIEW

Changes the definition of a materialized view.

Synopsis

ALTER MATERIALIZED VIEW [ IF EXISTS ] <name> <action> [, ... ]
ALTER MATERIALIZED VIEW <name>
    DEPENDS ON EXTENSION <extension_name>
ALTER MATERIALIZED VIEW [ IF EXISTS ] <name>
    RENAME [ COLUMN ] <column_name> TO <new_column_name>
ALTER MATERIALIZED VIEW [ IF EXISTS ] <name>
    RENAME TO <new_name>
ALTER MATERIALIZED VIEW [ IF EXISTS ] <name>
    SET SCHEMA <new_schema>
ALTER MATERIALIZED VIEW ALL IN TABLESPACE <name> [ OWNED BY <role_name> [, ... ] ]
    SET TABLESPACE <new_tablespace> [ NOWAIT ]

-- where <action> is one of:

    ALTER [ COLUMN ] <column_name> SET STATISTICS <integer>
    ALTER [ COLUMN ] <column_name> SET ( <attribute_option> = <value> [, ... ] )
    ALTER [ COLUMN ] <column_name> RESET ( <attribute_option> [, ... ] )
    ALTER [ COLUMN ] <column_name> SET STORAGE { PLAIN | EXTERNAL | EXTENDED | MAIN }
    CLUSTER ON <index_name>
    SET WITHOUT CLUSTER
    SET TABLESPACE <new_tablespace>
    SET ( <storage_paramete>r = <value> [, ... ] )
    RESET ( <storage_parameter> [, ... ] )
    OWNER TO { <new_owner> | CURRENT_USER | SESSION_USER }

Description

ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.

You must own the materialized view to use ALTER MATERIALIZED VIEW. To change a materialized 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 materialized view's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the materialized view. However, a superuser can alter ownership of any view anyway.)

The DEPENDS ON EXTENSION form marks the materialized view as dependent on an extension, such that the materialized view will automatically be dropped if the extension is dropped.

The statement subforms and actions available for ALTER MATERIALIZED VIEW are a subset of those available for ALTER TABLE, and have the same meaning when used for materialized views. See the descriptions for ALTER TABLE for details.

Parameters

name

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

column_name

Name of a new or existing column.

extension_name

The name of the extension that the materialized view is to depend on.

new_column_name

New name for an existing column.

new_owner

The user name of the new owner of the materialized view.

new_name

The new name for the materialized view.

new_schema

The new schema for the materialized view.

Examples

To rename the materialized view foo to bar:

ALTER MATERIALIZED VIEW foo RENAME TO bar;

Compatibility

ALTER MATERIALIZED VIEW is a Cloudberry Database extension of the SQL standard.

See also

CREATE MATERIALIZED VIEW, DROP MATERIALIZED VIEW, REFRESH MATERIALIZED VIEW