Many database-specific features are not supported by the generateChangeLog and diffChangelog commands. I don’t have definitive proof that this is not supported, but I do know that there are many features like this that are not supported by Liquibase.
The company that I work for, Datical, has written extensions to Liquibase to add support for things like this. Some of the features we support include “storage options” like tablespaces and partition schemes. We also support triggers, check constraints, database packages (on Oracle), views, and more extensive support for functions and stored procedures. My point in mentioning this is that it is possible to support things like this, but it is not always straightforward.
Principal Software Engineer
Datical, Inc. http://www.datical.com/