Hi Richard,
What you are attempting should work in principle - we use a similar setup in Ensembl for the two main tables (Gene and Transcript) and it works just fine.
That gives me hope ;-)
What are the exact names of the two main tables in your mart?
test_reactome_18__pathway__main test_reactome_18__reaction__main
I'm assuming you started with no meta tables, connected MartEditor, clicked Naive, accepted the default suggestion, clicked Export, and that was that?
Yes, that's exactly what I did.
Which BioMart release are you using?
I switched over to 0.5 a couple of weeks ago. Cheers, David.
