Removes a type from the system catalogs.
DROP TYPE typename [, ...]
The name of a type you wish to remove. You may drop multiple types by specifying their names in a comma-delimited list.
The message returned when a type is dropped successfully.
ERROR: RemoveType: type '
' does not exist
The error displayed if the type
typenameis not found in the connected database.
DROP TYPE command to remove a type from the database system.
Only the owner of a type, or a superuser, is allowed to do this.
If you are logged in as a superuser, you will be able to drop system types. However, doing so can cause extreme instability. Be careful!
DROP TYPE command will not automatically remove any objects that
reference the data type, or types, that you are dropping. Once a data type is removed,
anything that uses it will most likely stop working. Be sure to remove objects that depend on
types that you drop, and be sure not to drop types used by objects you wish to keep.
The following command removes the
zero data type from the
booktown=# DROP TYPE zero; DROP