Hi everyone,
this may be a simple question, but I cannot seem to figure it out:
Is there any way to run a function, which expects a single value as an
argument, for each row returned from a select statement? Note that this is a
special function, used in the following way:
SELECT sum(length(the_geom )) as dist_meters
FROM
shortest_path_as_geometry('roads', 2192, 154) ;
In the above example the function "shortest_path_as_geometry" expects three
arguments... Is there any way to feed a function like this its arguments from
column returned from a previous select statement? Or, would this function
have to be re-written to allow for this flexibility?
thanks in advance,
--
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341
_______________________________________________
vox-tech mailing list
[email protected]
http://lists.lugod.org/mailman/listinfo/vox-tech
