This is my attempt to seek support at PostGreSQL.So, if I have broken any protocols/rules or violated any code of conduct then please do forgive and guide me. Thanks.
The G is not capitalized.
I know we can use FDW but our teams are right now considering dblink ( it seems it is more performant when compared to FDW ) and we obviously do not want to end up in a situation where we develop something in few months and then we find that the PostGreSQL support is ending with a new version.
There is no deprecation note and they have co-existed for years now. Lacking the former, it isn’t going to just be removed for no reason, and there presently exists no reason to remove it. I cannot predict the future though. But IME it is exceedingly unlikely to happen.
David J.