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:
st_union(st_simplify(geom, 0.001))
if it is of any help.
--
Maxime
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