Skype presents: PgBouncer 1.0 - lightweight connection pooler

["Marko Kreen" <marko(dot)kreen(at)skype(dot)net>]

A lightweight connection pooler, that also has special features to
function as a pooler for PL/Proxy 2.

https://developer.skype.com/SkypeGarage/DbProjects/PgBouncer

Its features are:

* Special 'statement pooling' mode, where server connection is released
  back to pool after each statement.  Long transactions are disallowed
  in this mode.  It is needed for PL/Proxy 2.
* Low overhead, low resource usage.
* Easy to administer.  Most settings are online reconfigurable.
  Pooler can be upgraded without dropping connections, it can
  pass sockets over to new process.