Dear everybody. I tried the tutorial on the site recommended to set up the network topology. There was a need to include the routing_topology.sql definitions into the database. I did that. But I'm stuck at this error now:<br>
<br>VSDelhidb=# SELECT assign_vertex_id('roads_line', 0.0002, 'the_geom', 'gid');<br>NOTICE: CREATE TABLE will create implicit sequence "vertices_tmp_id_seq" for serial column "<a href="http://vertices_tmp.id">vertices_tmp.id</a>"<br>
CONTEXT: SQL statement "CREATE TABLE vertices_tmp (id serial)"<br>PL/pgSQL function "assign_vertex_id" line 15 at EXECUTE statement<br>ERROR: query string argument of EXECUTE is null<br>CONTEXT: PL/pgSQL function "assign_vertex_id" line 36 at EXECUTE statement<br>
<br><br>Sadly, I'm not able to debug this error. Please help me here.<br>