[server] use a LifoQueue in _CnxSetPool
In postgresql, some cache is attached to the connection. Using a LifoQueue
(last-in, first-out) makes a few connections to get the most load which give
best performance.
.. _RQLChapter:
Relation Query Language (RQL)
=============================
This chapter describes the Relation Query Language syntax and its implementation in CubicWeb.
.. toctree::
:maxdepth: 2
intro
language
debugging
usecases
implementation