A collection of (mostly) technical things every software developer should know about

Collections of vector search related libraries, service and research papers

Cache File System optimized for columnar formats and object stores

Apache Druid: a high performance real-time analytics database.

Automated testing to find logic and performance bugs in database systems

A list of learning materials to understand databases internals

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)