如何在不打印特定兄弟姐妹的情况下引用 mongodb 中的兄弟姐妹 ID

Question

enter image description here I'm trying to use mongosh to retrieve the details of the other siblings, ie Child2 and Child3 by referencing the child1 document. What mongosh condition should I use to get this and not the child1 and father document?

I tried the aggregate method and the find method, I tried to apply the logic of using the parent_id, which is common among the other siblings, but it prints the child1 id as well. Help!

Answer 1

I figured it out after some trial and error and I used the $ne function. So according to the image, the answer should be:

db.family.find({parent_id: "1", _id:{$ne:2}})