[postgis-users] ST_Insersection problem

[Sandro Santilli]

On Wed, Sep 21, 2011 at 06:38:02AM -0700, G. van Es wrote:
> Sandro, thanks for your reply. You're right about "folding postgis 7 times" :-)
> 
> I'm having difficulties in isolating the offending geometries, which is mainly due to my lack of knowledge.
> 
> When I look at the location at 59647.5 392932 there is no intersection. Only when I use buffer(geom,1) there are two objects, one of them being a funny line of three points but still identified by PG as polygon.  

Does sound like a culprit. Must be the 7th folding of a polygon :)
Try omitting it from the input set.

--strk;

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