Ability to use loopback IP in dblink as hostaddr
In AWS when using dblink, you can use loopback IP 127.0.0.1 as hostaddr when you are using cross database queries. When we migrate from AWS PostgreSQL to Azure Database PostgreSQL, we need to point the hostname to either the instance IP or server name. Hopefully this will be a new feature so that we can do the migration without changing the our codes every time we migrate to another server. For more details, here's the case ID 120031124003015.