Do I need to store links (id) to child documents in mongodb?

Question

NoSQL

There are two documents in the database: people and doc. doc is always owned by people.
In doc I create the owner (id) field, similarly in people there is an array docs for storing document id.
Does it make sense for people to have an array with id docs? Will the find query be faster by _id (passing an array of IDs) than by owner? If neither is right, then what is right?

Answer 1

The first option is correct