I am wondering, why it took so long for something like this to happen for Postgres, where as Vitess existed for MySQL more than a decade. I am not an expert, but I hear Citus is not really a fair comparison with Vitess.
We were thinking about adding PostgreSQL support to Vitess several years ago. However, we realized that it would be more efficient if each tool was focused on a specific task.
https://github.com/vitessio/vitess/issues/7084#issuecomment-...
That’s today. The project is developing fast, so I am sure more things will be added :)