https://postgrespro.ru/docs/postgresql/16/explicit-locking
https://pglocks.org/?pgcommand=VACUUM

2018
https://www.citusdata.com/blog/2018/02/22/seven-tips-for-dealing-with-postgres-locks/
    https://habr.com/ru/company/otus/blog/452986/
2015
https://habrahabr.ru/company/postgrespro/blog/270827/

samples
select ... for update;