RethinkDB

RethinkDB was a pioneering open-source, scalable database designed specifically for real-time web applications. Its innovative approach centered around a push-based architecture, enabling developers to receive continuous, real-time updates to query results directly from the database, eliminating the need for constant polling. This streamlined process empowered developers to create scalable real-time applications more efficiently and with fewer engineering resources. RethinkDB offered a user-friendly and robust query language, supporting complex operations such as table joins and groupBy functions. Its highly parallelized architecture and web-based management tools further simplified cluster administration and optimization.