Tom,
> There's not any special smarts for seqscans, but the counter should
> handle that.
So all pages start out with the same counter, except VACUUM tuples?
BTW, I found this paper on RDBMS memory management, which probably could have
saved us some weeks of discussion:
http://www.cs.usask.ca/~wew036/research/comprehensive.pdf
--
Josh Berkus
Aglio Database Solutions
San Francisco