On Sat, Nov 6, 2010 at 9:58 AM, Robert Haas <robertmhaas@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