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PostgreSQL 9.6.11 Documentation
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DROP TYPE

Name

DROP TYPE -- remove a data type

Synopsis

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

Description

DROP TYPE removes 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, and operators), and in turn all objects that depend on those objects (see Section 5.13).
RESTRICT: Refuse to drop the type if any objects depend on it. This is the default.

Examples

To 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 PostgreSQL extension. But note that much of the CREATE TYPE command and the data type extension mechanisms in PostgreSQL differ from the SQL standard.

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