[postgis-users] ST_NumPoints
Ben Madin
ben at remoteinformation.com.au
Mon May 25 06:55:06 PDT 2009
G'day,
This may be way off your problem, and in fact may not matter at all,
but I am led to believe that :
On 21/05/2009, at 4:39 PM, Kis János Tamás wrote:
> I have a big table (with 21000 rows):
>
> CREATE TABLE kecskemet_k.foldreszletek
> ( sorszam bigserial NOT NULL,
> hrsz text,
> geometria geometry --POLYGON
> ) WITH (OIDS=TRUE);
> CREATE INDEX i_foldreszletek_geometria ON kecskemet_k.foldreszletek
> USING gist (geometria);
1. it is better practice to add the geometry column to the table after
generating the table using the postgis addGeometryColumn() function.
2. you may be better to add a gid column than using OIDS
So your table creation might end up looking like :
CREATE TABLE kecskemet_k.foldreszletek
( gid serial unique,
sorszam bigserial NOT NULL,
hrsz text
);
SELECT
AddGeometryColumn
('kecskemet_k','foldreszletek','geometria',-1,'POLYGON',2);
CREATE INDEX i_foldreszletek_geometria ON kecskemet_k.foldreszletek
USING gist (geometria);
I hope this is correct and not unhelpful.
cheers
Ben
--
Ben Madin
REMOTE INFORMATION
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Broome WA 6725
ben at remoteinformation.com.au
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