[postgis-users] error in using Contains command

[orkun]

hello

I compiled postgis  using "./configure --with-proj-libs=/usr/local/lib/ 
--with-geos-libs=/usr/local/lib/",make ,make install" and
I got no error.

But when I used sql commands as:

template1=# SELECT id, geom FROM gtest
template1-# where geom && 'POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))'
template1-# AND Contains(geom,'POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))');
ERROR:  contains:: operation not implemented - compile PostGIS with JTS 
or GEOS support


what might be the problem ?

regards

Ahmet Temiz

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