columnar-storage

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

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.

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

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

Distributed "massively parallel" SQL query engine

Unified MySQL, Postgres & FlightSQL Server, Powered by DuckDB.

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

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

Manipulate arrays of complex data structures as easily as Numpy.

A high-performance library for compressed ND arrays and columnar tables, with compute and indexing engines

A Bluesky appview focused on low resource consumption

Index Common Crawl archives in tabular format

Julia implementation of Parquet columnar file format reader

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

Uni is a modern, embedded database that combines property graph (OpenCypher), vector search, and columnar storage (Lance) into a single, cohesive engine. It is designed for applications requiring local, fast, and multimodal data access, backed by object storage (S3/GCS) durability.

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

A distributed OpenTelemetry-native columnar datastore whose only backend is object storage.

A simple column store in golang