FUNCTION point_to_id has schema hardcoded as public

[benmadin]

The point_to_id function has the schema element hard-coded, which makes it unusable without re-writing and replacing the function where public is not the default schema for gis tables.

ie, I had to replace the function with :

BEGIN

    _srid := Find_SRID('gis','vertices_tmp','the_geom');

    SELECT

Might be useful to have an option / alternative where the assign_vertex_id function looks up the schema of the current table at the same time as it checks the srid, and passes that to the point_to_id function as the appropriate schema.