So, no logical checkpoints, logical logging would have to be a separate process. The main reason I would want both is to be certain that I was restoring the DB

So, no logical checkpoints, logical logging would have to be a separate process. The main reason I would want both is to be certain that I was restoring the DB to a consistent state, even if the application is doing things stupidly (eg. not using transactions correctly. Or at all). I suppose timestamps would be enough to view the logs interleaved or side-by-side in some fashion.