> > Very, very hard, but not impossible. If you update a row, and do a
> > select on that row, the select updates the transaction status so the
> > next select doesn't need to look at the pg_log table. What this means
> > is that pg_log could probably be reconstructed from existing data, with
> > just 'unselected' changes not appearing properly.
>
> So at the end you have some data that you cannot trust. I
> don't think that's worth the efford.
Yes. True. It is just a point that came up recently when Tom found the
first select on a table slow.
--
Bruce Momjian | http://www.op.net/~candle
maillist@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026