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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.
At work, we usually tend more towards PostgreSQL primarily because of: - Schema - Row Security Policies - More mature extensions to work with timeseries and geo data (Timescale, PostGIS, etc.)
If you and your team currently don't have any specific requirements, I'd advice to choose an abstraction library that have supports for most common dbs (eg. gorm or bun) and start with whatever db you are more used to.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.