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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.
The only reason I didn't propose using your really-safe-money library in my other comment was that you have a word of caution about it not being used in production - would you consider this to still be true?
You might have a look at https://github.com/thma/HasBigDecimal.
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