[pgrouting-users] TSP weridness in development version of postgres matrix TSP

[Dave Potts]

According to the web page 
http://docs.pgrouting.org/dev/src/tsp/doc/index.html

The  first parmeter 'start' in the distance matrix version, is the 
starting node, so in the following examples,  I assume that the first 
entry in the results set would be the same as the 'start' parmeter.  It 
'works' fine in Example1 and Example2, but Example3 and Example4 start 
off from node 1 and 0,  I was assuming that they would be starting off 
from node 2 and 3.

Is there any reason for this?
Dave.
==============================================

Example1
tsp=# SELECT seq, id FROM 
pgr_tsp('{{0,1,3,3},{1,0,2,2},{3,2,0,2},{3,2,2,0}}',0);
  seq | id
-----+----
    0 |  0
    1 |  1
    2 |  3
    3 |  2
(4 rows)
Example2
tsp=# SELECT seq, id FROM 
pgr_tsp('{{0,1,3,3},{1,0,2,2},{3,2,0,2},{3,2,2,0}}',1);
  seq | id
-----+----
    0 |  1
    1 |  3
    2 |  2
    3 |  0
(4 rows)
Example3
tsp=# SELECT seq, id FROM 
pgr_tsp('{{0,1,3,3},{1,0,2,2},{3,2,0,2},{3,2,2,0}}',2);
  seq | id
-----+----
    0 |  1
    1 |  3
    2 |  2
    3 |  0
(4 rows)
Example4
tsp=# SELECT seq, id FROM 
pgr_tsp('{{0,1,3,3},{1,0,2,2},{3,2,0,2},{3,2,2,0}}',3);
  seq | id
-----+----
    0 |  0
    1 |  1
    2 |  3
    3 |  2
(4 rows)