Parent/User Relationship using Join type

Elastic Stack Elasticsearch
1

I have list of users and there is one field called parent, some users might not have parents.

I want to get the full parent hierarchy, full child hierarchy for given user id.

What should by my mapping on that?

Here is the example.
UserId, Name, ParentId
1 . , KP . , NULL/Blank/0
2 . , RT . , 1
3 . , TH . , 2
4 . , MS , 3

If I want to get all child hierarchy of UserId-2 that should be Ids (3,4,....) and i also want to get the Parent hierarchy of 4 that should be (3,2,1...!).

Is it possible to achieve this in ES6.3? If yes, what should be my Mapping? I might have Single/Multiple Parents.

2

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