I've been able to map the driving time and distance between different points in a small city, but I would now like to be able to do this for the United States.
However, I've learned that the function pgr_kdijkstraCost is limited by int arguments. I am using postgresql 9.3 with postgis 2 and pgrouting 2 extensions. I would like to have the function accept bigint arguments.
Is there a known way to fix this? Is the source code for the function available (I found pgrouting on github but don't know where the folder with the function is)?.