Merlin Moncure escribió: > Maybe abstracting 'last xid cache' along with hint bit management out > of both transam.c and tqual.c into something like 'hints.c' is > appropriate, but that's a more invasive change.
It would be good to have such a patch to measure/compare performance of both approaches. It does seem like the more invasive change might be more expensive for both the transam.c and the tqual.c uses, though; and it's not clear that there's anything to be gained by having them be together in a single module. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
