I didn't vacuum tenk1 after loading into 8.02, so optimizer was optimistic
and used index. After vacuuming I got what's Tom get.
On Tue, 26 Apr 2005, Tom Lane wrote:
>
> In 8.0 this looks like
>
> regression=# explain analyze select * from tenk1 where hundred between 1 and 10 and thousand between 1 and 100;
> QUERY PLAN
> -------------------------------------------------------------------------------------------------------
> Seq Scan on tenk1 (cost=0.00..558.00 rows=99 width=244) (actual time=0.171..69.189 rows=100 loops=1)
> Filter: ((hundred >= 1) AND (hundred <= 10) AND (thousand >= 1) AND (thousand <= 100))
> Total runtime: 70.013 ms
> (3 rows)
Regards, Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
