我有一个如下所示的文档集合:
{
name : "tester"
, activity: [
{
gear: "glasses"
where: "outside"
}
, {
gear: "hat"
, where: "inside"
}
, {
gear: "glasses"
, where: "car"
}
]
}
如何查询集合以仅返回包含“gear”:“glasses”值的多个活动的文档?
谢谢!