This reminds me of my course project from a database class. ui-optimizer-postgres [1]. It's more of learning tool. It used gtk to allow you to modify the plan i

This reminds me of my course project from a database class. ui-optimizer-postgres [1]. It's more of learning tool. It used gtk to allow you to modify the plan in real time. This was 6 years ago, so my memory is a fuzzy. Write up: https://github.com/josephmate/ui-optimizer-postgres/blob/REL9_3_UI_OPTIMIZER/write-up/write-up.pdf https://github.com/josephmate/ui-optimizer-postgres/blob/REL... [1] https://github.com/josephmate/ui-optimizer-postgres/tree/REL9_3_UI_OPTIMIZER https://github.com/josephmate/ui-optimizer-postgres/tree/REL... PS: Definitely don't use this in production because the DB blocks, waiting for someone to confirm the plan ;)