> > > OTOH it is possible to do without rolling back at all as
> > > MySQL folks have shown us ;)
> >
> > Not with SDB tables which support transactions.
>
> My point was that MySQL was used quite a long time without it
> and still quite many useful applications were produced.
And my point was that needless to talk about rollbacks in
non-transaction system and in transaction system one has to
implement rollback somehow.
> BTW, do you know what strategy is used by BSDDB/SDB for
> rollback/undo ?
AFAIR, they use O-smgr => UNDO is required.
Vadim
