Thread: PostgreSQL Apt Repository instructions need updating

Re: https://www.postgresql.org/download/linux/debian/

The instructions presented for key handling are not inline with Debian best-practices

 As per https://wiki.debian.org/DebianRepository/UseThirdParty:

"The key MUST be downloaded over a secure mechanism like HTTPS to a location only writable by root, which SHOULD be
/usr/share/keyrings.The key MUST NOT be placed in /etc/apt/trusted.gpg.d or loaded by apt-key add. A sources.list entry
SHOULDhave the signed-by option set. The signed-by entry MUST point to a file, and not a fingerprint."