[postgis-users] Query crashed

Mark Cave-Ayland m.cave-ayland at webbased.co.uk
Tue Nov 22 07:19:19 PST 2005


> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-
> bounces at postgis.refractions.net] On Behalf Of Mikael Carneholm
> Sent: 22 November 2005 13:24
> To: PostGIS Users Discussion
> Subject: RE: [postgis-users] Query crashed
> 
> Thanks, that worked:
> 
> create or replace function createbb2(latitude numeric, longitude numeric,
> size_m integer) returns box3d as $$
> declare
> 	latlong_multiplier numeric := 0.0000111319;
> begin
> 	return expand( makepoint(latitude,longitude),
> (size_m*latlong_multiplier) )::box3d;
> end;
> $$
> language plpgsql immutable;
> 
> explain analyze
> select
>       p.point__id,
>       p.latitude,
>       p.longitude,
>       p.altitude_meters
> from point p
> where p.geo && SetSRID(createbb2(53.948821,10.858131,1000), 3007)
>      and distance (
>         p.geo,
>         creategeom(53.948821,10.858131,3007)
>     ) <= 1000;
> 
> 
> QUERY PLAN
> --------------------------------------------------------------------------
> --------------------------------------------------------------------------
> --------------------------------------------------------------------------
> ---------
>  Index Scan using idx_point_geo on point p  (cost=0.00..6.02 rows=1
> width=45) (actual time=1.921..33.662 rows=414 loops=1)
>    Index Cond: (geo &&
> '0103000020BF0B000001000000050000000000002006F84A40000000C0A9B125400000002
> 006F84A400000002010BD2540000000C0DFFA4A400000002010BD2540000000C0DFFA4A400
> 00000C0A9B125400000002006F84A40000000C0A9B12540'::geometry)
>    Filter: (distance(geo, creategeom(53.948821, 10.858131, 3007)) <=
> 1000::double precision)
>  Total runtime: 34.407 ms
> 
> 
> Still, I would be happier if the box3d parser was fixed. Anyone working on
> that?
> 
> /Mikael


Hi Mikael,

Glad you got your query to work :) As for the BOX3D parser, that's probably
something for strk to look at....


Kind regards,

Mark.

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