Does anybody knows if vertex (source, target columns) in osm2po tables are always the same?
I have my dr_2po_4pgr table with routing data and dr_matrix with routes already made. In this table I have source,target,cost columns. This is for avoid pgrouting functions that penalize the performance (I need to make many calls to these functions).
My question is, if when I generate an updated dr_2po_4pgr (osm2po routing table) table with a new osm file should also update my table dr_matrix or if source,target id's are always the same.
Thanks in advance!!
Pd: excuse my english