Inside 8kdata: The Madrid-Based Innovators Who Tried to Teach PostgreSQL New Tricks

In the fast-evolving world of enterprise data architecture, few open-source projects enjoy the foundational reverence of PostgreSQL. Yet, for years, a major architectural friction point divided developers: the rigid schema-and-SQL paradigm of relational databases versus the flexible, JSON-heavy, document-oriented nature of NoSQL systems like MongoDB.

Enter 8kdata, a pioneering database research and development startup based in Madrid, Spain. Though operating quietly compared to industry giants, 8kdata left an indelible footprint on modern database infrastructure by attempting to bridge the gap between relational integrity and NoSQL agility.

The Origins and Vision of 8kdata

Founded by prominent open-source database architects—including CEO Víctor Martínez and CTO Álvaro Hernández Tortosa—8kdata was built on a bold premise: You shouldn’t have to choose between the rock-solid reliability of a relational database and the developer-friendly flexibility of document stores.

Rather than building a brand-new database engine from scratch, 8kdata looked to the world’s most extensible open-source relational database: PostgreSQL. Their mission was to leverage Postgres’s powerful internal architecture and extension model to handle unstructured and semi-structured data natively, giving developers the best of both worlds.

Flagship Innovations: ToroDB and the Mongo Wire Protocol

The crown jewels of 8kdata’s technical output centered around transforming how data could be ingested and queried without sacrificing relational guarantees:

• ToroDB: Perhaps 8kdata’s most famous creation, ToroDB was an open-source NoSQL database that ran entirely on top of PostgreSQL. It allowed applications designed for MongoDB to seamlessly talk to a Postgres backend.
• The Mongo Wire Protocol (mongowp): To achieve compatibility, 8kdata engineered robust libraries capable of interpreting MongoDB’s native wire protocol. This meant developers could point existing document-based apps directly at a relational engine, mapping dynamic JSON documents into structured relational tables on the fly.

By translating NoSQL queries into SQL operations behind the scenes, 8kdata provided a bridge for companies wanting to escape vendor lock-in or fragmentation, unifying their data infrastructure under a single, robust database umbrella.

Why 8kdata Matters in the Modern Data Era

Though the brand name “8kdata” evolved through corporate transitions and industry acquisitions (such as partnerships and integrations with major enterprise database entities like EnterpriseDB), the core philosophy championed by the company has heavily influenced today’s data landscape.