if(!empty($data['start']) && !empty($data['end'])) {
$map["a.sum(jine)"] = array('between',[$data['start'],$data['end']]);
}

$res=$this
->where($map)
->alias('a')
->join('zhanghao w ','w.zyzh = a.laiyuan')
->field('titles,dizhi,laiyuan,xingxiang,sum(jine) as zonghe')
->order('zonghe desc')
->group('titles')
->limit($from, $size)
->select();

金额是sum后的金额，但是我查询的时候，报错了，我想查询的是对sum后的金额，进行区间查询，该怎么写呢