> How's that any different than something that talks SQL? It's the most universal data language there is. To use SQL you need to know the schema you're working

> How's that any different than something that talks SQL? It's the most universal data language there is. To use SQL you need to know the schema you're working against. Every single tool has to agree on a specific schema - and there are tons of existing tools that push infrastructure/system metrics into timeseries databases. For them it's simple, Influx uses some API, OpenTSDB uses another, Prometheus uses yet another - but they're all pretty simple to use. If you would point them to a Postgres database on the other hand, they wouldn't have a clue what fields to insert.