-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I don't know about alternatives, but I think the SQL in the Diesel Getting Started is just migrations. If you want to write those in Rust, Diesel has support for Barrel (setup guide). Not production-ready though.
https://github.com/rust-unofficial/awesome-rust#web
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.