Hi,
I'm tryin this query
SELECT DISTINCT ON (mytable.my_id) mytable.my_id,
asText(envelope(mytable.the_geom)) AS the_geom
FROM mytable
ORDER BY mytable.my_id;
but envelope function returns points instaed of polygons.
My geometries are all points.
I'm working on postgres 9.0 and postgis 1.5 upgraded from vers. 8.2 and
1.4(?)on win32; with old version but same table, the query works fine
(returns polygon).
Any suggestion is welcome
Benedetto
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