| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Jesper Krogh <jesper(at)krogh(dot)cc> |
| Cc: | Marcelo Zabani <mzabani(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: gist indexes for distance calculations |
| Date: | 2010-10-12 00:52:23 |
| Message-ID: | AANLkTinru5HiozuVy2ayUjjJVpbtnpuWw69XcF+k3ewC@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Fri, Oct 1, 2010 at 1:56 AM, Jesper Krogh <jesper(at)krogh(dot)cc> wrote:
> On 2010-09-30 20:33, Marcelo Zabani wrote:
>>
>> If you can also pinpoint me to where I can find this sort of information
>> (index utilization and planning, performance tuning), I'd be very
>> grateful.
>> Thank you already,
>>
>
> Isn't this what the knngist patches are for?
> https://commitfest.postgresql.org/action/patch_view?id=350
>
> http://www.sai.msu.su/~megera/wiki/knngist
Those are for when you want to order by distance; the OP is trying to
*filter* by distance, which is different.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Scott Carey | 2010-10-12 02:02:51 | Re: Slow count(*) again... |
| Previous Message | Mladen Gogala | 2010-10-11 23:50:36 | Re: Slow count(*) again... |