It's not. We tried. Plus, it doesn't work on RDS, where most of production databases are. I think Citus was a great first step in the right direction, but it's time to scale the 99% of databases that don't run on Azure Citus already.
That's because Amazon wants to do whatever they like themselves... you apparently can get stuff to work by running your own masters (w/ citus extension) in EC2 backed by workers (Postgres RDS) in RDS:
