Tom Lane <tgl@xxxxxxxxxxxxx> writes: > As it happens, the original Berkeley-era Postgres did indeed add > creation and deletion timestamps to every row, as part of their "time > travel" feature. That got ripped out very soon after the code left > Berkeley, because the overhead was just unacceptable ... and our > threshold for unacceptable performance was a whole lot higher then > than it is today ... > > It's worth noting in connection with this Joe Hellerstein's description > of Berkeley-era Postgres: > http://archives.postgresql.org/pgsql-hackers/2002-06/msg00085.php The followups are fascinating too. The next three messages immediately begin discussing how to get back this feature at least as an option. -- greg ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
