It can do, however you can also use views, custom query functions for whole queries or for specific columns, custom mutation functions, or simply extend the sch

It can do, however you can also use views, custom query functions for whole queries or for specific columns, custom mutation functions, or simply extend the schema at the Node application level to do a lot more than just the structure of the DB tables. For me it just means I don't have to write any code other than the schema to simply expose CRUD actions with filter and sort and such things - the escape hatches have been perfectly adequate for more complex behaviour.