On Wed, Nov 17, 2010 at 6:33 PM, Robert Haas <robertmhaas@gmail.com> wrote:
> I think you're missing the point. If we switch databases, all cached
> relations and plans have to be flushed anyway. We're talking about
> what might NOT need to be flushed on switching databases.
Oh sorry, yes, I missed that point.
I will mention that your point about TCP connection establishment
latency is real. TCP connection establishment adds several
milliseconds of latency (for low latency connections -- obviously it's
much much worse for long-haul connections) and then the congestion
control slow start adds more if there's a significant amount of data
to transfer.
--
greg