I am sure there are many areas that Oracle is still technically better than Postgre.

What I am interested in, is what are those features / problems. And if Postgre has a roadmap for those improvement.

I mean not just Oracle. Outside of HN the majority of dev and cooperation still swears by MySQL. I often wished HN instead of constantly hyping a technology, tell me up front what are the Cons. And hopefully everyone will make up their own mind whether the Pros and the Cons are worth trying it out.