real-time-analytics

QuestDB is a high performance, open-source, time-series database

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.