password-less access, without using pg_hba

[Reece Hart <reece@xxxxxxxxx>]

I'd like to provide public access, without a password, to a database hosted on Amazon RDS.

I'm familiar with using pg_hba.conf to enable trust (no) authentication for a user. pg_hba.conf is not available to DBAs on RDS.

Is there any other way to achieve password-less login in postgresql? I tried alter user password NULL.

Thanks,

Reece