查询2个数字和2个不同的字段？

Question

我在Parse.com上有一个类，它有一个x和y字段。是否可以使用一个查询来获取x = 10和x = 20以及y = 10和y = 20中所说的所有对象？

查询是否会像这样设置？

    PFQuery *query1 = [PFQuery queryWithClassName:@"myClass"];
    [query1 whereKey:@"x" greaterThanOrEqualTo:[NSNumber numberWithInt:leftEdge]];
    [query1 whereKey:@"x" lessThanOrEqualTo:[NSNumber numberWithInt:rightEdge]];


    PFQuery *query2 = [PFQuery queryWithClassName:@"myClass"];
    [query1 whereKey:@"y" greaterThanOrEqualTo:[NSNumber numberWithInt:topEdge]];
    [query1 whereKey:@"y" lessThanOrEqualTo:[NSNumber numberWithInt:bottomEdge]];


    PFQuery *query = [PFQuery orQueryWithSubqueries:@[query1, query2]];