QuestDB is a relational database that natively supports time series data.
The original name of the system was **nfsdb** ("Need For Speed Database").
Relational
https://www.questdb.org/
https://github.com/bluestreak01/questdb
https://docs.questdb.org/
nfsdb
Appsicle Ltd.
GB
2014
Commercial, Open Source
Java
Windows
AGPL v3