Exactly the same one from what I see: https://github.com/ethan-seal/ors_expensive/blob/main/explain_plans/cold_or_explain_plan https://github.com/ethan-seal/ors

Exactly the same one from what I see: https://github.com/ethan-seal/ors_expensive/blob/main/explain_plans/cold_or_explain_plan https://github.com/ethan-seal/ors_expensive/blob/main/explai... Given the buffer reads seem close to yours, I believe it's page cache.