Just need something like this for postgres and we would jump on it. Citus is close, but all the features that are important are behind their exceptionally tall paywall.
https://aws.amazon.com/rds/postgresql/pricing/
https://azure.microsoft.com/en-us/pricing/details/postgresql...
Of course, the answer is that both are insane markups. But it's worth being able to focus on other things!
1: https://www.citusdata.com/blog/2021/03/13/scaling-out-postgr...