MonetDB

MonetDB is a column-store-based DBMS, developed by the CWI DB architectures team, and the brainchild of Professor Martin Kersten.

This is a stub page, so consult WikiPedia' MonetDB description for now.

MonetDB has its own website with a lot of content, as well as a users' (and developers') wiki. It may be particularly interesting to visit the Internals section of the website, and this extremely long single page exposition of the architecture and design. And some of the APIs. And other stuff too.