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PostgreSQL 7.3.21 Documentation
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DROP TYPE

Name

DROP TYPE -- remove a user-defined data type

Synopsis

DROP TYPE typename [, ...] [ CASCADE | RESTRICT ]

Inputs

typename: The name (optionally schema-qualified) of an existing type.
CASCADE: Automatically drop objects that depend on the type (such as table columns, functions, operators, etc).
RESTRICT: Refuse to drop the type if there are any dependent objects. This is the default.

Outputs

DROP TYPE: The message returned if the command is successful.
ERROR: RemoveType: type 'typename' does not exist: This message occurs if the specified type is not found.

Description

DROP TYPE will remove a user type from the system catalogs.

Only the owner of a type can remove it.

Examples

To remove the box type:

DROP TYPE box;

Compatibility

Note that the CREATE TYPE command and the data type extension mechanisms in PostgreSQL differ from SQL99.

Comments

2002-12-05 03:12:26

<P>BEWARE: Do NOT drop a type for which there are user defined functions still in the database. Doing so will render the DROP FUNCTION foo(bar) useless. To get rid of them will require you to go into the pg_proc table, and issue a DELETE FROM command on the function names that have unmatched types.

<P>Having functions in your db that do not have matching types will also completely freak out PG-ADMIN!