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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.
It looks like the text of and GitHub discussion around RFC #216: Collection Views would be your starting point and, if that's not enough, you could dig back into previous APIs and discussions mentioned there.
Map API
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