Here is a hacked-together tool for visualizing Postgres B+Trees as GraphViz graphs: https://github.com/petergeoghegan/btree_visualization https://github.com/pet

Here is a hacked-together tool for visualizing Postgres B+Trees as GraphViz graphs: https://github.com/petergeoghegan/btree_visualization https://github.com/petergeoghegan/btree_visualization Note that it's very rough, because I never got around to polishing it (I am not really the original author). It also visualizes them in physical as opposed to logical order, because I never finished off the latter (which would probably be more useful).