-
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.
Example of use [here](https://github.com/eatonphil/ponyo/blob/master/src/Net/Http/Response.sml#L8)
https://github.com/MLton/mlton/blob/master/lib/mlton/basic/hash-set.sig https://github.com/MLton/mlton/blob/master/lib/mlton/basic/hash-table.sig
Check out cmlib (https://github.com/standardml/cmlib), or if you're using SML/NJ, ORD_MAP implementations (https://www.smlnj.org/doc/smlnj-lib/Util/sig-ORD_MAP.html).
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.