[pgrouting-users] assign_vertex_id trouble

[Andrea Mazzeschi]

Hi I'm andrea. I'm new in pgrouting, postgis and similar. I was following this useful guide http://goo.gl/FuIiF to create a network topology. However when I try to execute the command
assign_vertex_id('<table>', float tolerance, '<geometry column', '<gid>')
to my table, I have this response:

NOTICE:  CREATE TABLE will create implicit sequence "vertices_tmp_id_seq" for serial column "vertices_tmp.id"
CONTEXT:  SQL statement "CREATE TABLE vertices_tmp (id serial)"
PL/pgSQL function "assign_vertex_id" line 14 at EXECUTE statement
ERROR:  query string argument of EXECUTE is null
CONTEXT:  PL/pgSQL function "assign_vertex_id" line 35 at EXECUTE statement

Do anyone know what's the problem?
(sorry for my bad english)

_____________________

zEuSsE
e.mail: zeusxxl at virgilio.it




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