We didn't get anywhere with making the default authentication method in
a source build anything other than trust. But perhaps we should change
the default for password_encryption to nudge people to adopt SCRAM?
Right now, passwords are still hashed using MD5 by default, unless you
specify scram-sha-256 using initdb -A or similar.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services