Which league had the most matches in the 2008/2009 season?
league that had the most matches in the 2008/2009 season refers to MAX(league_id WHERE season = '2008/2009');
SELECT t1.name FROM League AS t1 INNER JOIN Match AS t2 ON t1.id = t2.league_id WHERE t2.season = '2008/2009' GROUP BY t1.name ORDER BY COUNT(t2.id) DESC LIMIT 1