Babelfish: The SQL Server Killer?

Proposed session for SQLBits 2026

TL; DR

Babelfish for PostgreSQL promises a SQL Server drop-in replacement. We install it and run a SQL Server app on Postgres, ready to cut licensing costs. Can this bold claim reshape SQL Server’s future?

Session Details

Babelfish for PostgreSQL is an open-source project that calls itself a drop-in replacement for SQL Server. The idea behind it is simple: set up a PostgreSQL database with the Babelfish extension and it magically starts acting like SQL Server - accepting connections and commands from applications built for SQL Server, and maybe even saving you from those hefty licensing costs.

In this session, we’ll put that claim to the test. We’ll introduce Babelfish, install it, and use it as the target database for an application originally designed for SQL Server. If Babelfish really delivers, what does that mean for SQL Server developers and DBAs? Could this be the nail in the coffin for SQL Server?

3 things you'll get out of this session

Explain what Babelfish for PostgreSQL is and how it works Demonstrate installing and configuring Babelfish Test compatibility by running a SQL Server–based application on PostgreSQL and evaluate real-world limitations, performance, and gaps

Gianluca Sartori's other proposed sessions for 2026

Questioning My SQL Server Faith… So You Don’t Have To - 2026

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