[parthdesai]

I could be wrong, but with Citus, for most use cases, you can only have one co-ordinator node which fans out requests. So theoretically, you still can run into bottle necks at some point if 1 coordinator node is not enough.

With proxies like pgdog, multigres, and eventually Neki, these can scale out horizontally, so you get true unlimited scale.

[frollogaston]

Doesn't PgDog only have one proxy, or can you have multiple? I imagine they'd need to coordinate on sharding rules somehow.

[levkk]

You can have multiple. All sharding is config-based, so no real-time synchronization is required.