Re: Sync Rep v19
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: Dimitri Fontaine <dimitri@2ndquadrant.fr>
Cc: Bruce Momjian <bruce@momjian.us>, Simon Riggs <simon@2ndquadrant.com>, Fujii Masao <masao.fujii@gmail.com>, pgsql-hackers@postgresql.org
Date: 2011-03-10T20:50:48Z
Lists: pgsql-hackers
On Thu, Mar 10, 2011 at 3:29 PM, Dimitri Fontaine <dimitri@2ndquadrant.fr> wrote: > Robert Haas <robertmhaas@gmail.com> writes: >> they are, but there's no easy way to figure out what that means in >> terms of wall-clock time, which I think would be useful. > > Jan Wieck had a detailed proposal to make that happen at last developper > meeting, but then ran out of time to implement it for 9.1 it seems. The > idea was basically to have a ticker in core, an SRF that would associate > txid_snapshot with wall clock time. Lots of good things would come from > that. > > http://archives.postgresql.org/pgsql-hackers/2010-05/msg01209.php > > Of course if you think that's important enough for you to implement it > between now and beta, that would be great :) I think that's actually something a little different, and more complicated, but I do think it'd be useful. I was hoping there was a simple way to get some kind of time-based information into pg_stat_replication, but if there isn't, there isn't. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company