well, since he wrote his app in vb.net he is probably using postgresql as a dumb data store, it might not be all that difficult. still, not a very smart move.
so if you have functions on server side or triggers or rules... then you need some rewrite on the app... otherwise just to adapt the sql as necessary... -- regards, Jaime Casanova "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs and the universe trying to produce bigger and better idiots. So far, the universe is winning." Richard Cook