On Tue, Jan 23, 2007 at 12:03:38PM +0000, Mark Watts <m.watts at eris.qinetiq.com> wrote a message of 58 lines which said: > I'm guessing it does that every time it gets a new query? For PostgreSQL, certainly not (enabling the log of statements in the DBMS allow to see that PowerDNS caches - a good thing). This is unlike BIND-DLZ.