Re: performance question: protocol v2 vs v3

Craig Ringer wrote:
> On 11/25/2014 06:45 PM, Albe Laurenz wrote:
> > An explanation is maybe that prepared statements are handled
> > using the extended query protocol, which only exists in v3.
> > With the extended query protocol, each statement is first parsed,
> > then parameters are bound to the statement and then the statement
> > is executed, leading to three client-server round trips.

> While Parse/Bind/Execute are separate steps, it is not correct to say
> that this means three round trips.
> 
> Take a look at the conversation on the wire in Wireshark. You'll see
> that generally, the Parse, Bind, Describe, Execute and Sync messages are
> all actually sent in the same packet.

I didn't know that, thanks for the clarification.

Yours,
Laurenz Albe