2023
Tenzor - Borovikov - Backend School - 7 Locks 3:00 of 1:04:52
    https://www.youtube.com/watch?v=RjLlixMdnSQ
    https://www.postgresql.org/docs/current/explicit-locking.html
2019
HighLoad - Rogov - PG Locks of 48:42
    https://www.youtube.com/watch?v=_R2-IsKfsUU
    https://highload.ru/moscow/2019/abstracts/6067
2012
https://www.youtube.com/watch?v=s3ee0nuDDqs
    https://momjian.us/main/writings/pgsql/locking.pdf