This DBIx::Class component resembles the behaviour of Class::DBI::UUID, to make some columns implicitly created as uuid. When loaded, UUIDColumns will search for a suitable uuid generation module from the following list of supported modules: Data::UUID APR::UUID* UUID Win32::Guidgen Win32API::GUID If no supporting module can be found, an exception will be thrown. *APR::UUID will not be loaded under OpenBSD due to an as yet unidentified XS issue.