Re: Execution variability

Vincenzo Romano escribió:

> The values are here below. I suppose that the "hashed"
> ones imply a default value.

Correct (widely known as "commented out")

> By the way, it seems that the problem arises with only one query,
> while the other ones behave almost the same all the time.

Let's see the EXPLAIN ANALYZE.  Does it involve the big table?

--
Alvaro Herrera       Valdivia, Chile   ICBM: S 39º 49' 18.1", W 73º 13' 56.4"
"There is evil in the world. There are dark, awful things. Occasionally, we get
a glimpse of them. But there are dark corners; horrors almost impossible to
imagine... even in our worst nightmares." (Van Helsing, Dracula A.D. 1972)