to a backend simultaneously. If there is more queries pending, they will be processed once a response
has been sent for one of the already processed queries.
-Backends are assumed not to support out-of-order by default, so only query at a time will be sent over
+Backends are assumed not to support out-of-order by default, so only one query at a time will be sent over
a TCP connection to a backend, meaning that up to ``maxInFlight`` connections to a backend might be needed
to be able to process all accepted queries.
Setting ``maxInFlight`` to a value greater than zero on :func:`newServer` changes that, and up to ``maxInFlight``