[Sinjo]

To be honest we've not looked into Citus in any depth.

My early impression of it (can't speak for the rest of the team) was that it was mostly aimed at sharding analytics workloads, but parts of the docs (e.g. https://docs.citusdata.com/en/v7.1/admin_guide/cluster_manag...) make it sound like it handles OLTP workloads too.

Maybe I've been ignoring it for bad reasons!

EDIT: Managing Postgres clusters is something that a lot of people are working on. Thought I'd mention two projects that have me excited right now:

  - Patroni https://github.com/zalando/patroni
  - Stolon https://github.com/sorintlab/stolon

Stolon's client proxy approach in particular looks interesting, and reminds me of how people are using Envoy (https://github.com/envoyproxy/envoy), albeit as a TCP proxy rather than one that understands and can do fun stuff with the database's protocol. I wonder if we'll start to see more Envoy filters for different databases!

[craigkerstiens]

Craig from Citus here. Since we grew transactional support a couple of years ago and a number of the features we've supported since then much of our traction has come from those outgrowing single node Postgres and needing more performance. So in short we're very much focused on handling and supporting OLTP workloads.

We do also support some analytics workloads, less so data warehousing, when there is a need for end user facing analytics where higher concurrency and real-time responsiveness is key.