我有一个文档集示例:
{name:"Danny", age:20, gender: 0}
{name:"Jordan", age:15, gender: 1}
{name:"Li Mei", age:20, gender: 1}
{name:"Soojin", age:17, gender: 0}
{name:"Zhang Ming", age:22, gender: 1}
我想通过按性别分组得到以下结果
{
"Test field":[{name:"Danny", age: 20}, {name:"Soojin", age: 17}]
}
{
"Test field":[{name:"Jordan", age: 15}, {name:"Li Mei", age: 20}, {name: "Zhang Ming", age: 22}]
}
什么查询可以实现这一点?