DROP TYPE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
DROP TYPE removes a user-defined data type. Only the owner of a type can remove it.
- Do not throw an error if the type does not exist. A notice is issued in this case.
- The name (optionally schema-qualified) of the data type to remove.
- Automatically drop objects that depend on the type (such as table columns, functions, operators).
- Refuse to drop the type if any objects depend on it. This is the default.
To remove the data type box:
DROP TYPE box;
This command is similar to the corresponding command in the SQL standard, apart from the IF EXISTS option, which is a Postgres-XC extension inherited from PostgreSQL. But note that much of the CREATE TYPE command and the data type extension mechanisms in Postgres-XC differ from the SQL standard.