​​QuestDB - (★ 10.2K at GitHub) is an open-source time-series database for high throughput ingestion and fast SQL queries with operational simplicity. It supports schema-agnostic ingestion using the InfluxDB line protocol, PostgreSQL wire protocol, and a REST API for bulk imports and exports.

QuestDB is well suited for financial market data, application metrics, sensor data, real-time analytics, dashboards, and infrastructure monitoring.

Please check also the aweomse video here, with nice introduction and demonstraion of all the features.

P.S. Thanks to Dmitry for this link!

#db #timeseries #java