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Hello,i´m from argentina, so excuse my english. <br>
My problem is i have a table with 500000 record,polygons and points
type <span id="result_box" class=""><span
style="background-color: rgb(255, 255, 255);" title="">and i have to
find objects which intersects with an boundary in particular</span></span><br>
<br>
Example of ,my query<br>
select * from zone where geometry @ (select geometry from othertable
where id=1) <br>
<br>
My table definition:<br>
CREATE TABLE "zone"<br>
(<br>
zoneid integer NOT NULL DEFAULT nextval('zonas_id_seq'::regclass),<br>
"name" text,<br>
buffer integer,<br>
description text,<br>
layerid integer,<br>
geometry geometry,<br>
color integer,<br>
CONSTRAINT zone_pk PRIMARY KEY (zoneid),<br>
CONSTRAINT enforce_dims_geometry CHECK (st_ndims(geometry) = 2),<br>
CONSTRAINT enforce_srid_geometry CHECK (st_srid(geometry) = 4326)<br>
)<br>
WITH (<br>
OIDS=FALSE<br>
);<br>
ALTER TABLE "zone" OWNER TO postgres;<br>
<br>
-- Index: idx_zone_geometry<br>
<br>
-- DROP INDEX idx_zone_geometry;<br>
<br>
CREATE INDEX idx_zone_geometry<br>
ON "zone"<br>
USING gist<br>
(geometry);<br>
<br>
-- Index: idx_zone_zoneid<br>
<br>
-- DROP INDEX idx_zone_zoneid;<br>
<br>
CREATE INDEX idx_zone_zoneid<br>
ON "zone"<br>
USING btree<br>
(zoneid);<br>
<br>
I have test of differents ways to accelerate my query with other
functions like st_distance,st_dwithin,etc<br>
but do not know which to use<br>
<br>
Thanks<br>
<br>
<br>
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