assertSame(20L, maxScore);
maxScore = Account.q("region", "AU").max("score");
assertSame(20L, maxScore);
AggregationResult r = Account.groupMax("score", "region", "department");
assertSame(20L, r.getResult("region,department", "AU", "SA"));
assertSame(12L, r.getResult("region,department", "CN", "IT"));
}