https://www.postgresql.org/docs/current/plpgsql-errors-and-messages.html

2022
https://hakibenita.com/future-proof-sql
    https://proglib.tech/p/kak-namerenno-rasstavlennye-oshibki-pomogayut-sdelat-sql-kod-legko-podderzhivaemym-2022-11-10