[postgis-users] ST_IsValid behaviour

Paolo Cavallini cavallini at faunalia.it
Wed Feb 14 11:17:52 PST 2018

Hi all,
we noticed two strange things in the behaviour of ST_IsValid:
* repeated vertices are not considered invalid
* in case of multiple intersections on a same polygon, only the first
one is reported.
Is there an explanation for this?
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html

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