FYI
> Its architecture is based around columnar data storage, advanced
compression, and fast disk and network I/O.
>
> This, combined with its roots in the open source PostgreSQL database, has
prompted The Reg to speculate that Amazon has managed to parallelize the
PostgreSQL technology.
http://www.theregister.co.uk/2013/02/15/amazon_redshift_goes_ga/
Ian Barwick