[postgis-users] Union fails on 2389 linestrings.
Maxime van Noppen
maxime at altribe.org
Thu Jul 29 00:49:23 PDT 2010
On 07/28/2010 10:15 PM, Jeff Adams wrote:
> OK, I finally have it down to a manageable use case. Union these 16
> linestrings, you get a topology exception. Remove any one of them, you
> don't. What the heck can I do about this? Simplifying and snapping to
> grid, at any reasonable precision, did not help my larger real data (I
> didn't try with this little test case).
> Is there any chance that ST_Union has a bug? Isn't it supposed to be
> adding the node it complains is missing?
I got it working by simplifying the geometries:
if it is of any help.
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