What is 2004, when 2009 is "A"?
CREATE TABLE "men_s_doubles_performance_timeline" (
  "tournament" text,
  "2004" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text
);
SELECT "2004" FROM "men_s_doubles_performance_timeline" WHERE "2009"='a';