[pgrouting-users] Split lines at specific points


This may be a simple question, but im not sure how to solve this. I want to split the edges in my network at specific points. I have a few hundred points lying on different edges. Splitting should result in 2 lines instead of one. Then i recalculate the length of the lines and in the end i run assign_vertex_id to get the topology back. My goal is to make routing more accurate, so that the calculation uses start and endingpoints which are directly infront of the start and endpoints. I already tried the smart_wrapper function but it wont work. So i will do it by hand. Could someone give me a hint whats the best way to follow for this?
Thank you!