DROP MATERIALIZED VIEW — remove a materialized view
DROP MATERIALIZED VIEW [ IF EXISTS ] name
[, ...] [ CASCADE | RESTRICT ]
DROP MATERIALIZED VIEW drops an existing materialized view. To execute this command you must be the owner of the materialized view.
IF EXISTS
Do not throw an error if the materialized view does not exist. A notice is issued in this case.
name
The name (optionally schema-qualified) of the materialized view to remove.
CASCADE
Automatically drop objects that depend on the materialized view (such as other materialized views, or regular views).
RESTRICT
Refuse to drop the materialized view if any objects depend on it. This is the default.