That's interesting. The guys at reddit previously compared various database systems including Amazon's SimpleDB, and found that PostgreSQL was the fastest (see

That's interesting. The guys at reddit previously compared various database systems including Amazon's SimpleDB, and found that PostgreSQL was the fastest (see 'Scaling your Python application on EC2' from PyCon 2010: http://pycon.blip.tv/file/3257303/ http://pycon.blip.tv/file/3257303/ ) Appearently Reddit switched over to Cassandra in March 2010 (http://blog.reddit.com/2010/03/she-who-entangles-men.html http://blog.reddit.com/2010/03/she-who-entangles-men.html)