> -----Original Message-----
> From: Jim Starkey [mailto:jas@...]
> Sent: Martes 20 de Junio de 2000 17:31
>
> The head record is always a full record and by definition doesn't have
> a new version.

Can you define the "head record"? Is this the most recent one in the db,
the one that "faces" the freeze point, other explanation?

> But let me repeat my question. Why do you need to preserve the
> records at the "freeze point"? Assuming the rest of the problems
> have solutions, the records that exist at the freeze points are the
> only records you don't need to produce an incremental backup. What
> is the gain in trying to preserve them?
>
> Jim Starkey

If the freeze point is the starting point, then there's no need AFAIK to
keep older records than it, assuming we are speaking about incremental
backups or I missed the boat... I'm used to miss it, anyway. ;-)
However, the problem that makes me think without a real solution is the one
you threw: how do you detect deleted records?

C.