On Sat, Nov 6, 2010 at 9:58 AM, Robert Haas <robertmh...@gmail.com> wrote: > This looks good, but how about adding: > > if (!RecoveryInProgress()) > PG_RETURN_NULL(); > > Otherwise, if we're in Hot Standby mode for a while and then enter > normal running, wouldn't this still return a (stale) value?
Yes, but isn't that (stale) value useful to check how far WAL records have been replayed, *after failover*? Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers