Current CDC version (11.4) although supports Oracle 12, doesn't support what Oracle calls "extended data types":
Basically on 12c Oracle allows longer maximums for types VARCHAR2, NVARCHAR2 and RAW.
Why is it useful?
|Who would benefit from this IDEA?|
How should it work?
NOTICE TO EU RESIDENTS: per EU Data Protection Policy, if you wish to remove your personal information from the IBM ideas portal, please login to the ideas portal using your previously registered information then change your email to "firstname.lastname@example.org" and first name to "anonymous" and last name to "anonymous". This will ensure that IBM will not send any emails to you about all idea submissions