QuestDB is an open source database for time series, events, and analytical workloads with a primary focus on performance. https://github.com/questdb/questdb
For the story on how QuestDB came to be and the journey of its creator Vlad, see here: https://news.ycombinator.com/ite...
Applications : DevOps monitoring, application metrics, financial data, connected devices.
Hands down fastest database I've ever used. There is definitely a slight learning curve to getting it operational, and because of how new it is, it can be hard to find solutions online. That is a small price to pay for the fastest database ever. Not to mention that the community is incredibly strong, with remarkably fast response times. Cannot recommend enough.
QuestDB
G.O.A.T
Invoice generator
QuestDB
Invoice generator