id summary reporter owner description type status priority milestone component version resolution keywords cc 2173 ST_Split fails to split on existing vertex strk pramsey "This bug was found in #2172 as it affects topology building. In that case a line (899.112421269008 units long) gets splitted by one if its vertices which is around halfway into it: {{{ select st_line_locate_point(geom, st_pointn(geom, 745)) from offending; 0.692338478022024 }}} The return from ST_Split, unioned back togheter, does NOT give the original geometry back. This is most likely due to the fact that the split is not occurring exactly where the original vertex is but rather on a close-by point which results in snapping a segment on the new point. " defect closed medium PostGIS 2.0.3 postgis 2.0.x fixed history