Gavin, Tom,
> Well, from my reading of some of the early papers, VACUUM was kind of
> different to what it is now. The idea was that expired data would be moved
> out the heap and stored else where. A timetravel mechanism could be used
> to see previous versions of the row.
And from talking to a couple of Stonebraker's former students at conferences,
this mechanism was never build satisfactorily; it always existed on paper, at
least at UCB. Illustra might have finished it. Elein around?
--
Josh Berkus
Aglio Database Solutions
San Francisco
