This is the companion repository for the book How Query Engines Work.

A 'new look' for database access in Scala

Apache DataFusion Comet Spark Accelerator

Apache Polaris, the interoperable, open source catalog for Apache Iceberg

Lakekeeper: A Rust native Iceberg REST Catalog

Apache maven

Limbo is a work-in-progress, in-process OLTP database management system, compatible with SQLite.

Examples showing how use Spring on Kubernetes

Educational blog posts for Rust beginners

Feature-complete implementation of the Raft consensus algorithm in Java

Blazingly 🔥 fast 🚀 memory vulnerabilities, written in 100% safe Rust. 🦀

A tutorial of building an LSM-Tree storage engine in a week.

1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

Log-Structured Merge Tree Java implementation

Distributed SQL database in Rust, written as an educational project

PostgreSQL pooler with sharding, load balancing and failover support.

Build Postgres Extensions with Rust!

Apache Pekko Kafka Connector - Pekko-Connectors is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Apache Pekko.

Distributed Systems Labs and Framework

Avro SerDe for Apache Spark structured APIs.

The Amazon Web Services (AWS) JDBC Driver for MySQL is a driver that enables applications to take full advantage of the features of clustered MySQL databases.

Tool for declarative management of Kafka topics

The multiplayer game engine

Karapace - Your Apache Kafka® essentials in one tool

C++ examples for the Vulkan graphics API

Rust integration for Unreal Engine 5

KMinion is a feature-rich Prometheus exporter for Apache Kafka written in Go. It is lightweight and highly configurable so that it will meet your requirements.