Join Types not supported by Query Folding

Hi,

Been struggling with this for a while as there seems to be very limited documentation on Query Folding, but from what I've read it seems like all types of joins should be supported by query folding. However in practice I've found that only Left Outer joins will query fold, with all other types disabling it ( view native query is disabled and it starts downloading rows for the preview ).

I'm connecting via SQL server to our data warehouse so I can't see why this would be occuring. Currently I'm having to always use Left Outer join then expand and filter out nulls to achieve what I want which seems to be the long way round when I would like to be using inner joins.

Thanks for any help