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DROP DOMAIN -- remove a domain
DROP DOMAIN [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
DROP DOMAIN removes a domain. Only
the owner of a domain can remove it.
- IF EXISTS
Do not throw an error if the domain does not exist. A
notice is issued in this case.
The name (optionally schema-qualified) of an existing
Automatically drop objects that depend on the domain
(such as table columns).
Refuse to drop the domain if any objects depend on it.
This is the default.
To remove the domain box:
DROP DOMAIN box;
This command conforms to the SQL standard, except for the
IF EXISTS option, which is a