model.addColumn("rowcount", Integer.class);
model.addColumn("integer", Integer.class);
model.addColumn("double", Double.class);
model.addColumn("text", String.class);
model.addColumn("text2", String.class);
model.addColumn("date", Date.class);
final Random random = new Random();
random.setSeed(seed);
final Calendar baseDate = new GregorianCalendar(2000, 1, 1);