| From: | Sean Davis <sdavis2(at)mail(dot)nih(dot)gov> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-novice(at)postgresql(dot)org, ann hedley <ann(dot)hedley(at)ed(dot)ac(dot)uk>, Duncan Garland <duncan(dot)garland(at)ntlworld(dot)com> |
| Subject: | Re: query efficiency - Can I speed it up? |
| Date: | 2007-02-01 18:29:56 |
| Message-ID: | 200702011329.56626.sdavis2@mail.nih.gov |
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| Lists: | pgsql-novice |
On Thursday 01 February 2007 13:28, Tom Lane wrote:
> Sean Davis <sdavis2(at)mail(dot)nih(dot)gov> writes:
> > You might think about full-text searching of the descriptions. It may be
> > quite a bit faster than a "like" search. It may be worth looking.
>
> It's not the LIKE search that's her problem though --- the time is going
> into fetching the matching rows from the other table.
>
> If the "go" table becomes large then it'd be time to worry about that,
> but right now it's only costing her 80 msec to seqscan it...
Oops. Thanks.
Sean
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