How to optimize a database using PostgreSQL for an online store, using my example?

Question

MySQL

There is a simple mysql database for a simple store:
priducts (id, name) - product id and product name
params (id, name) - parameter id and parameter name
product_param (product_id(foreign key), param_id(foreign key)) - table, which links products and parameters.
Question! I read that there is such a PostgreSQL thing. Can you help me by explaining its benefits using my example? And how to use it on the example of my simplest store? As far as I understand, this is an object-oriented base, but how will this help me in practice? I'm still in prostration. Can I add objects to the database? I'm also interested in how it will work with filters later.

Answer 1

bad news: you don't understand a damn thing.
good news: you learned about postgres.
summary: until you understand, asking such questions is pointless.

Answer 2

there will be no special advantages in this example.