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TimescaleDB
An open-source time-series SQL database optimized for fast ingest and complex queries. Packaged as a PostgreSQL extension.
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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.
TimescaleDB is Postgres with extensions to automatically partition tables for fast processing of time series data.
TickTockDB is a new open-src TSDB. Although it is not rich in features, its write throughput can reach 3.2M data points/sec v.s. InfluxDB 74K in a 2c4g x86 (detail report here). It is enough for your case (79M data point/day = 914/sec). You may also have to consider max cardinality (i.e., number of time series supported) of TSDB. TickTockDB's max cardinality is 2M v.s. InfluxDB 150k in RaspberryPI4 (detail report here)).
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