Nested sets for FIAS?

Question

nested set

Colleagues, by eliminating bad practices, I am trying to achieve a relatively correct solution.

Yuzayu FIAS discovered for himself the fact that the depth of the address can be different.

For example:
Voronezh region
-----Verkhnemamonsky district
---------s. Lower mamon

Moscow
----- Naro-Fominsk district
-------- city of Vereya
------------ village Kryuchki

Of course I want to be wrong, but the depth is different, in addition to all sorts of villages there many more others.

I'm already thinking about Nested sets, since FIAS lies in a flat structure that looks like just Nested sets

Add left right lvl and voila, Nested sets.

Has anyone done this?

As a result, I want to get address trees.
The roots will naturally be autonomous okrugs.

The only thing that confuses is the amount of data on the bush.

Answer 1

I did denormalization for elastic and made a graph. Both are ok. First. Option for full-text search and typos, and the second option for the sake of experimenting with performance. Nested set is not needed here. Do not confuse tasks)