On 9 May 2012 15:34, Tom Lane <t...@sss.pgh.pa.us> wrote: > Simon Riggs <si...@2ndquadrant.com> writes: >>> We should just use MyPgXact->xid >>> rather than add more to the transaction path >>> >>> I'll simplify the patch and commit. > >> Committed, but forgot to give appropriate credit. Sorry about that. > > This patch didn't fix things, it broke things. The former guarantee > that age's reference point would hold still throughout a transaction > just disappeared. > > What I read your previous suggestion to be was that age() would keep > local state and use inspection of the current VXID to tell if its > cache was stale. That would keep the fix localized (which I agree > is a good idea) without losing the stability guarantee.
Gotcha. Will fix. -- Simon Riggs 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
