Hi, It seems there is a typo here:
http://www.postgresql.org/docs/devel/static/routine-vacuuming.html#VACUUM-FOR-WRAPAROUND where we say that we compare XIDs using arithmetic modulo 2^31, which should instead be 2^32 (as it is with uint32, e.g. xid_age). Best wishes, Dr. Gianni Ciolli - 2ndQuadrant Italia PostgreSQL Training, Services and Support gianni.cio...@2ndquadrant.it | www.2ndquadrant.it -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
