[postgis-users] Detecting holes in geometries

Thorsten Kraus Thorsten.Kraus at ptv.de
Fri Aug 24 01:15:59 PDT 2007


Hello,

I am able to detect the number of holes in a geometry with the following sql statement:

SELECT SUM(NumInteriorRings(geom)) AS countHoles from areas

Is there any possibility to get the position where the holes are?
Regards,
Thorsten
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