What base to take to detect the intersection of polygons?

Question

PostgreSQL

There are data arrays that represent nothing more than the coordinates of polygon points.
It is necessary to identify from them those that intersect with each other, at least in one place.
I heard that there are ready-made solutions in databases for comparing similar arrays.
They say that Postgree can do it. But I have not yet found how to do it there.
The application is written in Node.js.
Tell me please. Are there such solutions in the databases, or maybe something similar. And where to look for it.

Answer 1

www.rldp.ru/mysql/mysqlpro/spat.htm