In oracle, you can parameterize a statement by prepending the parameter with a colon. Normally this isn't a problem in a typical web app on railo. So this is an edge case. But lets say we had some code that would deploy a database, including database triggers. Oracle uses parameters in triggers. So you can't use query.cfc to create the trigger. Here is an example of an oracle sql statement that uses colons.
CREATE OR REPLACE TRIGGER triggerDir
BEFORE INSERT ON triggerTest
FOR EACH ROW
(notice the :new, parameter)
This would cause lucee to see the :new parameter and will expect the parameter to be provided. It throws this exception "The named parameter  has not been provided".
I propose we allow "escaping" colons by using double colons. In the example above. e.g. ::new which will be compressed to a single colon.