Postgres not suitable? Postgres is probably the most powerful multimodel data store with the lowest TCO on the market today. Postgres can be used for columnar

Postgres not suitable? Postgres is probably the most powerful multimodel data store with the lowest TCO on the market today. Postgres can be used for columnar data, as a graph database (using https://github.com/bitnine-oss/agensgraph https://github.com/bitnine-oss/agensgraph), as a timeseries database (using https://github.com/timescale/timescaledb https://github.com/timescale/timescaledb), and as a KV store (which is astoundingly simple to do using its builtin jsonb column type) In fact at this point the only thing other than Postgres I would look at is FoundationDB due to the fact that (although it takes some time) you can model and run ANY kind of data store on top of it.