Hi hackers, I found two email threads below,https://www.postgresql.org/message-id/b0d099ca-f9c3-00ed-0c95-4d7a9f7c97fc%402ndquadrant.comhttps://www.postgresql.org/message-id/CA%2B4BxBwBHmDkSpgvnfG_Ps1SEeYhDRuLpr1AvdbUwFh-otTg8A%40mail.gmail.com and I understood "OUT parameters in procedures are not implemented yet, but would like to have in the future" at that moment.
pgsql-hackers by date:
Соглашаюсь с условиями обработки персональных данных