[postgis-users] Best projection srid for topology

Rémi Cura remi.cura at gmail.com
Wed May 27 08:48:40 PDT 2015

maybe you should choose whatever srid reduce the number of digits,
for the sake of precision

2015-05-27 17:32 GMT+02:00 Marc-André Goderre <magoderre at cgq.qc.ca>:

> Hello all,
> I'm working on a many million lines topology project with OSM data in 4326
> srid. I'd like to know if i should transform their geom in a meter srid (
> like 3857). Should it be faster for the 'toTopoGeom()' function to work
> with geometry in 4326 or in 3857 srid?
> Thanks
> Marc
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