Removes a data type.

Synopsis

DROP TYPE [IF EXISTS] <name> [, ...] [CASCADE | RESTRICT]

Description

DROP TYPE will remove a user-defined data type. Only the owner of a type can remove it.

Parameters

IF EXISTS

Do not throw an error if the type does not exist. A notice is issued in this case.

name

The name (optionally schema-qualified) of the data type to remove.

CASCADE

Automatically drop objects that depend on the type (such as table columns, functions, operators).

RESTRICT

Refuse to drop the type if any objects depend on it. This is the default.

Examples

Remove the data type box;

DROP TYPE box;

Compatibility

This command is similar to the corresponding command in the SQL standard, apart from the IF EXISTS option, which is a Greenplum Database extension. But note that much of the CREATE TYPE command and the data type extension mechanisms in Greenplum Database differ from the SQL standard.

See Also

ALTER TYPE, CREATE TYPE

Parent topic: SQL Commands