> >If community will not like UNDO then I'll probably try to implement
> >dead space collector which will read log files and so on.
>
> I'd vote for UNDO; in terms of usability & friendliness it's a big win.
Could you please try it a little more verbose ? I am very interested in
the advantages you see in "UNDO for rollback only".
pg_log is a very big argument, but couldn't we try to change the format
to something that only stores ranges of aborted txn's in a btree like format ?
Now that we have WAL, that should be possible.
Andreas
