Geoffrey wrote:
> I'm really not altogether sure what you mean by transaction velocity.
> I'm pretty sure the electrons are traveling pretty close to the speed of
> light. ;)
Actually, electrons themselves flow rather slowly -- millimeters per
second according to Wikipedia. The signal propagation is a bit faster:
"typically 75% of light speed", Wikipedia again.
Anyway, he means "transaction rate". But the actual useful figure is
further removed from that because we're mostly only interested in write
transactions, not read-only (though those still have an effect in
versions earlier than 8.3.)
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support