Medora,
> Increasing effective_cache_size to 10000 did it.
That would be 78MB RAM. If you have more than that available, you can
increase it further. Ideally, it should be about 2/3 to 3/4 of available
RAM.
>The query now
> takes 4 secs. I left random_page_cost at the default value of 4.
> I thought, mistakenly apparently, that our database was relatively
> itty bitty and so haven't messed with the .conf file.
Actually, for a itty bitty database on a fast machine, you definitely want to
lower random_page_cost. It's a large database that would make you cautious
about this.
--
-Josh Berkus
Aglio Database Solutions
San Francisco