Hello, I was digging through the optimizer code and have a question regarding the edge recombination crossover (ERX) of the GEQO. It might be completely stupid and therefore I apologize for this in advance.
As far as I understand it, the idea of the ERX is the minimization of edge failures. When reading in geqo_main.c and geqo_erx.c, it seams that every iterative round (generation) it is checked by gimme_tour() if there where any edge failures. When I understand the algorithm right, there should be no edge failures. Therefore I think about NOT checking for edge failures anymore, to save some time. (If it just to make sure, it could be done only once in the end.) Might that work or do I have some errors in my thoughts? Thanks in advance, Tobias -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
