Drops an authorization object.
If you drop an authorization object, any external routine defined using the name of that authorization object is not accessible. To correct the issue, you must have the CREATE AUTHORIZATION privilege.
When you drop an INVOKER authorization by its authorization name, the system also drops the INVOKER_DEFAULT authorization entry.
This statement is a Teradata extension to the ANSI SQL:2011 standard.
You must have the DROP AUTHORIZATION privilege on the authorization object.