[postgis-users] [PostGIS 1.0.1] unite_garray:: operation not implemented - compile PostGIS with JTS or GEOS support

[Jérôme Tricand de la Goutte]

Hi all,

I'm new on this list and quite new on using Postgis.

I've just installed on my debian sarge box:
- Postgres 7.4.7 (debian package)

- GEOS 2.1.2 (debian package)
#geos-config --libs gives
-L/usr/local/lib -lgeos

- PROJ 4.4.9
#proj     give
Rel. 4.4.9, 29 Oct 2004
usage: proj [ -beEfiIlormsStTvVwW [args] ] [ +opts[=arg] ] [ files ]

- Postgis 1.0.1
configured by LDFLAGS=-lstdc++ ./configure  --enable-multibyte --with-CXX
-prefix=/usr --sysconfdir=/etc --docdir=/usr/share/doc/postgresql
--without-readline --without-zlib

I create a database using:
createdb testsvg
createlang plpgsql testsvg
psql -d testsvg -f postgis.sql
psql -d testsvg spatial_ref_sys.sql

Then, I created and fill a test table:
CREATE TABLE test (id INTEGER PRIMARY KEY, genre text, geom geometry);
INSERT INTO test VALUES ( 3, 'poly1', GeometryFromText( 'POLYGON((10 10,40
20,35 8,12 4,10 10))', -1 ) );
INSERT INTO test VALUES ( 4, 'poly2', GeometryFromText( 'POLYGON((10 40,20
30,30 40,40 35,50 60,35 80,20 60,10 40))', -1 ) );

But, when I tried this query:
select GeomUnion(geom) from test;

Posgres answer "unite_garray:: operation not implemented - compile PostGIS
with JTS or GEOS support"

What's wrong?

Thanks


-- 
Jérôme Tricand de la Goutte
Logatique / Groupe Projipe         www.logatique.fr
50, Rue Marcel Dassault            jerome.delagoutte at logatique.fr
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France                             fax 01 46 21 84 94