> That fact that transactions on different nodes will see
> different database states is no different than a pair of concurrent
> transactions on a single system.

Without giving much though I tend to agree with this for the
share-nothing architecture...

But what about situations where the data sets which are located on
different nodes intersect or are "identical"? In other words, what if
the same transaction executed on both nodes see different versions of
the same record?

Roman