Data Engineering & Databases

Super-Secret Next Big Thing for DuckDB

[2026 - Day 1 - Data Eng & Databases] DuckDB has been quietly working on something big. At AI Council 2026, co-creator Hannes Mühleisen finally reveals it. For years, DuckDB has taken a deliberately embedded, in-process approach to analytical data — powerful, but with one persistent limitation: multiple processes can't write to the same database at once. Until now. Hannes takes the stage to unveil Quack — a new remote protocol that gives DuckDB client-server capabilities for the first time. With a single extension, any two DuckDB instances on a network can become client and server over HTTP, with the full DuckDB feature set over the wire.

Speakers