PostgreSQL 13 is released with some cool features, such as index enhancement, partition enhancements, and many others. Along with these enhancements, there are some security-related enhancements that require some explanation. There are two major ones: one is related to libpq and the other is related to postgres_fdw. As it is known that postgres_fdw  is considered [&]

https://www.percona.com/blog/2020/09/30/postgresql_fdw-authentication-changes-in-postgresql-13/