boix <b...@uclv.cu> writes: > Hello, my partner and me are working with the goal of improve the GEQO's > performance, we tried with Ant Colony Optimization, but it does not > improve, actually we are trying with a new variant of Genetic Algorithm, > specifically Micro-GA. This algorithm finds a better solution than GEQO > in less time, however the total query execution time is higher. The > fitness is calculated by geqo_eval function. Does anybody know why this > happens?
Well, for one thing, you can't just do this: + aux = aux1; without totally confusing all your subsequent steps. You'd want to copy the pointed-to data, likely, not the pointer. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers