[Cartoweb-dev] [Bug 1165] New: pgdijkstra

[bugzilla-daemon at bugzilla.maptools.org]

http://bugzilla.maptools.org/show_bug.cgi?id=1165

           Summary: pgdijkstra
           Product: CartoWeb
           Version: unspecified
          Platform: PC
               URL: http://www.faunalia.com
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Plugins
        AssignedTo: cartoweb-dev at lists.maptools.org
        ReportedBy: walter at faunalia.it


I'm Walter Lorenzetti from Italy   
i'm trying to use pgdijkstra Postgresql extension  , but just with the    
post-gis test i had some problems with test-postigs:   
   
i use test-postgis.sql step by step....   
when i arrived to SELECT * FROM shortest_path('SELECT id, source, target, cost    
FROM graph2_edges', 1, 14, false, false); i obtain the seguent error:   
ERROR:  cost contains a null value   
   
at precedent function SELECT update_cost_from_distance('graph2'); the cost    
column is not writed because edge_id in graph2 table is empty.   
   
I don't kown how to fix it!   
   
thank you



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