I've been thinking about the same for quite a while now. In fact, look at the overlap between GraphQL and SQL conceptually. I absolutely think there is someth

I've been thinking about the same for quite a while now. In fact, look at the overlap between GraphQL and SQL conceptually. I absolutely think there is something to this. In the past, I have used certain wide open read only genomics databases (not going to name it so it doesn't get hammered by HN). Other posters are right about services such as BigQuery but I think there's a place for an open source project here that interfaces SQL to databases through a layer that adds caching, throttling and more services on top of that. That's how you make it scale. The Dremio project (open source by the backers of Apache Arrow) has a SQL REST API that converts a standard SQL dialect/datatypes to the underlying systems. I think that's a good start and Dremio has a ton of other awesome functionality like Apache Arrow caching. Simple model is expose an expression language (even could be not SQL, like jsoniq, or other expression languages), mapper from that to SQL, web service API on top with a pluggable connector model. I say that I'm going to start an open source project around this all the time but haven't gotten the inertia to do it. Argh!