On Sun, Dec 11, 2005 at 11:53:36AM +0000, Carlos Benkendorf wrote:
> I would like to use autovacuum but is not too much expensive
> collecting row level statistics?
The cost depends on your usage patterns. I did tests with one of
my applications and saw no significant performance difference for
simple selects, but a series of insert/update/delete operations ran
about 30% slower when block- and row-level statistics were enabled
versus when the statistics collector was disabled.
--
Michael Fuhr