MongoDB查询数组数组中的字段

Question

 { "_id": 1, "posts":[ { "_id": 1, "title": "my title", "content": "some post content here...", "comments": [ { "_id": 1, "text": "my comment" }, { "_id": 2, "text": "your_comment" } ] } ] } 

Here how would I query/fetch the documents which match this text 'my comment' in the text field of comments array.

Answer 1

You can use this simple query for find :

{
  "posts.comments.text": "my comment"
}