[Cartoweb-users] Pg Dijkstra select question

[Till Adams]

Dear Carto Webusers!

Is there any possibility to integrate something like a "WHERE" clause in 
the calculation of a shortest path, e.g.:

SELECT * FROM shortest_path_as_geometry('mytable', source_id, target_id) 
WHERE [attribute] != [value];

??

What is the difference between the "shortest_path_as_geometry()" and the 
"shortest_path()" function?
When I use the same source_id and target_id, I get two different 
results, e.g. 177 and 188 rows??

Thanks in advance and have a nice weekend!

Till

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Dipl. Geogr. Till Adams
terrestris, H. Paulsen& T. Adams GbR
Siemensstr. 8 * 53121 Bonn
Tel.: 0228 962 899 52 * Fax.: 0228 962 899 57
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