Columnar storage extension for Postgres built as a foreign data wrapper. Check out https://github.com/citusdata/citus for a modernized columnar storage implementation built as a table access method.

High-performance, columnar, in-memory store with bitmap indexing in Go

❄️ Coolest database around 🧊 Embeddable column database written in Go.

Distributed "massively parallel" SQL query engine

An open-source columnar data format designed for fast & realtime analytic with big data.

Another OLAP database

columnar storage + NoSQL OLAP engine | https://logv.org

Manipulate arrays of complex data structures as easily as Numpy.

ParquetSharp is a .NET library for reading and writing Apache Parquet files.

MySQL & Postgres Analytics, Reimagined

Julia implementation of Parquet columnar file format reader

Index Common Crawl archives in tabular format

Ballcone is a fast and lightweight server-side Web analytics solution.

C-Store : A column-oriented DBMS prototype (frozen)

A simple column store in golang

ergonomic columnar storage encoding crate

DuckDB that quack with PostgreSQL protocol

Enterprise Grade Single-Step Streaming Data Infrastructure Setup. (Under Development)

A metadata store database for GuinsooLab stack.

A repository that provides samples that use MariaDB Connector/Python