I have several detailed contiguous areas. I need to turn each one into KML, but when I do so, the end result is too large (in terms of memory). Using PostGIS I need to simplify these geometries but keep them contiguous.
I have tried calling
ST_SimplifyPreserveTopology with a
GEOMETRYCOLLECTION created by
ST_Collect, but the areas are no longer contiguous.
Previously I think I have succeeded in simplifying areas while at the same time keeping shared borders in line with each other by using desktop applications. However, I am looking for a way to do the same using PostGIS.