postgres (or pg) closes backend on exit

[Han Holl]

[Note: parts of this message were removed to make it a legal post.]

(This is ruby-1.8.[46] on Linux).

When I strace the following script:
#!usr/bin/ruby -w
require 'postgres'
connection = PGconn.connect(nil,nil,nil,nil,'palga', 'palga', 'Patologi')
# end-of-script
I see that it ends with:

send(3, "X\0\0\0\4", 5, 0) = 5
close(3) = 0

In other words, the script somehow shuts down the backend server on exit.
Normally this is fine, but if it's a fork of a process that is supposed to
continue with the same
backend it's a problem.
Does anyone know _how_ this is achieved, and therefore how I can disable it,
I tried GC.disable (doesn't work) and exit! (does work, but is a bit heavy
handed).

Thanks in advance for any help,

Han Holl