February, 2011 edit: I’ve now commented on Gartner’s 2010 Data Warehouse Database Management System Magic Quadrant as well.
It’s early autumn, the leaves are turning in New England, and Gartner has issued another Magic Quadrant for data warehouse DBMS. (Edit: As of January, 2009, that link is dead but this one works.) The big winners vs. last year are Greenplum and, secondarily, Sybase. Teradata continues to lead. Oracle has also leapfrogged IBM, and there are various other minor adjustments as well, among repeat mentionees Netezza, DATAllegro, Sand, Kognitio, and MySQL. HP isn’t on the radar yet; ditto Vertica.
I’m not a big fan of Gartner Magic Quadrants, but I thought I’d share even so.
Edit: For more on the data warehouse appliance part of the market, please see this December, 2007 post on data warehouse appliance fact and fiction.