They had to adopt EAV database schema model because they want to design a schema that can be as generalized and flexible as possible. Obviously performance is t

They had to adopt EAV database schema model because they want to design a schema that can be as generalized and flexible as possible. Obviously performance is the trade off. As a result, every Magneto shop has to use multiple layers of caching, which complicates the maintenance of Magneto, an open-source ecommerce off-the-shelf platform that's supposed to be easier than homebrew your own, ironically.