Database Schema
- product_id: Integer
- title: String
- category: String
- price: Double
- img_url: String
- prod_attributes: String (JSON blob)
- related_prod_ids: Integer Array
- product_id: int, not searchable
- title: text, searchable
- category: text_literal, searchable & facet & sortable
- price: double, searchable & facet
- img_url: text, not searchable
- prod_attributes: text, not searchable
- related_prod_ids: int array, not searchable