The compress operation eliminates states with exactly one successor state (parents
of 'only' children, if you will). Successful completion just means that compress has
done the best that it can with the state tree, not that all branches have been pruned.
A state 0 compression cannot occur if any state has branches (two or more children).
If there are no outstanding versions or locks, it's possible that your state tree is corrupted
(though it's probably only a minor issue). I'd recommend you contact Tech Support,
since they have access to diagnostic utilities to assess the contents of your state tree.
- V