The advanced programming Dojo I run is focusing on databases right now, so I recommended they join one of the low level sessions to get a better feel for the ac

The advanced programming Dojo I run is focusing on databases right now, so I recommended they join one of the low level sessions to get a better feel for the actual details of RDBMS architecture. Skimming the schedule, I thought these might do the job, but does anyone with more familiarity have a more specific recommendation? https://www.pgcon.org/events/pgcon_2020/schedule/session/39-hacking-the-query-planner-again/ https://www.pgcon.org/events/pgcon_2020/schedule/session/39-... https://www.pgcon.org/events/pgcon_2020/schedule/session/78-toward-full-acid-distributed-transaction-support-with-foreign-data-wrapper/ https://www.pgcon.org/events/pgcon_2020/schedule/session/78-... https://www.pgcon.org/events/pgcon_2020/schedule/session/50-work_mem-warriors-teaching-hashagg-hashjoin-and-other-memory-intensive-operators-to-respect-work_mems-boundaries/ https://www.pgcon.org/events/pgcon_2020/schedule/session/50-... https://www.pgcon.org/events/pgcon_2020/schedule/session/98-ptrack-20-yet-another-block-level-incremental-backup-engine/ https://www.pgcon.org/events/pgcon_2020/schedule/session/98-... https://www.pgcon.org/events/pgcon_2020/schedule/session/123-mechanical-sympathy-for-elephants-reducing-io-and-memory-stalls/ https://www.pgcon.org/events/pgcon_2020/schedule/session/123...