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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.
Factor is a stack-based language with object-oriented and functional features. It's under heavy development, yet you can try out stable releases.
It's always nice to see implementations in not so common languages. You say it's under heavy development? The github repository doesn't seem to show that. And the last release is from 2018.
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