Skype's plan to support 1 billion users w/ postgres a few years ago? http://highscalability.com/skype-plans-postgresql-scale-1-billion-users http://highscalabil

Skype's plan to support 1 billion users w/ postgres a few years ago? http://highscalability.com/skype-plans-postgresql-scale-1-billion-users http://highscalability.com/skype-plans-postgresql-scale-1-bi... and http://www.slideshare.net/adorepump/small-overview-of-skype-database-tools http://www.slideshare.net/adorepump/small-overview-of-skype-... Billions of records, 10,000 transactions per second. This was a couple of years ago. Dunno if Skype is complicated enough for you.