Hibernate version:
3.1.3

I'm using hibernate in a rich client application, connected to a Oracle10g.
During startup hibernate does a "version select" and a "snapshot select" for each of my mapped classes. Together with a laggy network this leads to a severe performace issue...about 50 mapped classes result in a 2 minutes startup-time. The debug log tells me that these selects need about 3 seconds each.
So my question ist: Is there any possibility to turn of these initial selects? What are they used for?

Thanks.