Perhaps I missed some big discussion on how great MySQL performs on graphs, because it would seem the wrong tool for graph traversal. You can represent a graph

Perhaps I missed some big discussion on how great MySQL performs on graphs, because it would seem the wrong tool for graph traversal. You can represent a graph in almost any data structure and because of this people do it all the time, but it isn't as performant because in MySQL you have to hit an external index on each traversal step, whereas the in a graph DB, each node caries an index of its adjacent nodes.