Maybe I'm just spoiled from how fast they implement all these features but I wish that, in the near future, table inheritance would also get some love. In its current state, inheritance needs a lot of manual checks[0]:
> unique, primary key, and foreign key constraints are not inherited.
> unique, primary key, and foreign key constraints are not inherited.
[0]: https://www.postgresql.org/docs/11/static/ddl-inherit.html