A previous employer thought that sql databases didn’t understand graphs. So they made their own system for serializing/deserializing graphs of objects into Post

A previous employer thought that sql databases didn’t understand graphs. So they made their own system for serializing/deserializing graphs of objects into Postgres . They never used queries and instead had their own in-memory operators for traversing the graph, had to solve problems like deleting an entry and removing all references, partial graph updates. And I still don’t think it works.