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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.
For cpp I love using https://www.etlcpp.com/. This is embedded template library with implementation of basic containers. For strings you have better management than c string and this library doesn't use dynamic allocation at all.
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