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Removes a data type.
DROP TYPE [IF EXISTS] name [, ...] [CASCADE | RESTRICT]
DROP TYPE will remove a user-defined data type. Only the owner of a type can remove it.
- IF EXISTS
- 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.
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 Greenplum Database extension. But note that the CREATE TYPE command and the data type extension mechanisms in Greenplum Database differ from the SQL standard.