Matt: I AM QUERY OPTIMIZATION GUY
Matt: AND THIS... IS MY QUERY
Andy: wha?... WHO TOUCH MY QUERY?!
Matt: WHO TOUCHED MY JOINS!!??
Matt: Some users think they can outsmart me.  Maybe... maybe.  I have yet to meet one who can outsmart LIMIT.
Matt: She weighs in at 300 lines of SQL and she searches 8 million rows per second.  It costs 24 billion machine cycles to run this query... for 12 seconds.
