Hi Shane,
this is the function, our admin wrote to work through my query, row by row:
CREATE OR REPLACE FUNCTION dh_test()
RETURNS void AS
$BODY$
declare
i integer;
begin
for i in 1..15099748 loop
execute 'insert into bfn.ni_stat_hoehendaten (polygon_id, hoehe_count,
hoehe_min, hoehe_max, hoehe_avg,' ||
' hoehe_stdev,neig_count, neig_min, neig_max, neig_avg, expos_count,
expos_min, expos_max, expos_avg, expos_stdev, the_geom)' ||
' select polygon_id, count(hoehe) as hoehe_count, min(hoehe) as
hoehe_min, max(hoehe) as hoehe_max,' ||
' avg(hoehe) as hoehe_avg, stddev_samp(hoehe) as hoehe_stdev,
count(neigung) as neig_count, min(neigung) as neig_min,' ||
' max(neigung) as neig_max, avg(neigung) as neig_avg, count(exposition)
as expos_count,' ||
' min(exposition) as expos_min, max(exposition) as expos_max,
avg(exposition) as expos_avg, stddev_samp(exposition) as expos_stdev,' ||
' p.the_geom' ||
' from bfn.ni_hoehendaten h,bfn.ni_polygone2 p' ||
' where st_within(h.the_geom,p.the_geom) and p.polygon_id=' || i || '
group by p.polygon_id, p.the_geom;';
end loop;
end;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
ALTER FUNCTION dh_test() OWNER TO postgres;
Precondition: pl/pgsql has to be installed.
If you need any explanation to that, please ask.
Regards,
Birgit.
Shane Butler schrieb:
Dear Birgit and List,
I am getting an out of memory error (see below) when doing a big query
that uses ST_Within(). This was described by Birgit on this list back
in August. Is there a solution?
Birgit, can you please explain the work around you mentioned on Aug 14:
http://postgis.refractions.net/pipermail/postgis-users/2008-August/020984.html
Any help would be greatly appreciated!
Kind Regards,
Shane
---
Some details of the error:
"ERROR: out of memory
DETAIL: Failed on request of size 32.
********** Error **********
ERROR: out of memory
SQL state: 53200
Detail: Failed on request of size 32."
My system info:
"POSTGIS="1.3.3" GEOS="3.0.0-CAPI-1.4.1" PROJ="Rel. 4.6.0, 21 Dec
2007" USE_STATS"
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