"Aaron Burnett" <aburnett@xxxxxxxxxxxx> wrote:
> Postgres Version 8.25
Do you mean 8.2.5? (There is no PostgreSQL version 8.25.)
If you're concerned about performance and you're still on 8.2, you
might want to consider updating to a new major version.
> 16 Gig RAM
> 192MB work_mem (increasing to 400MB didn't change the outcome)
What other non-default settings do you have?
> explain analyze select distinct(id) from member where id in
> (select memberid from answerselectinstance where nswerid =
> 127443 OR answerid = 127444 OR answerid = 127445 OR answerid
> = 127446 OR answerid = 127447 OR answerid = 127448 ) ;
How does this do?:
explain analyze
select distinct(m.id)
from answerselectinstance a
join member m
on m.id = a.memberid
where a.answerid between 127443 and 127448
;
-Kevin
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