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@Query-farm

Query.Farm

We build with DuckDB. Extensions. Products. Consulting. Tools.

🚜 Query.Farm

We build with DuckDB — extensions, products, consulting, and tools.

🦆 DuckDB, Extended

Query.Farm is a product studio focused on extending DuckDB.

We write DuckDB extensions, build developer tools, and help teams embed DuckDB into modern data systems.

If you’re working with DuckDB, we can help you accomplish great things.

💼 What We Offer

🧩 DuckDB Extension Development

We build native DuckDB extensions in C++ and Rust — from custom functions and table sources to new file formats and catalogs.

If DuckDB doesn’t do it yet, we can make it happen.

🛠️ Tools & Products

We’re building software around DuckDB and Apache Arrow: libraries, connectors, developer utilities, and full-stack integrations.

Get in touch to learn more or ask about early access.

🧠 Expert Consulting

From performance tuning to production deployment, we help teams use DuckDB effectively — embedded, at the edge, or in the cloud.

Whether you’re starting fresh or scaling fast, we can guide the way.

👋 Let’s Talk

If you’re building with DuckDB — or want to — we’d love to help.

📬 hello@query.farm

🌾 About Query.Farm

We’re data people — database engineers, systems hackers, and DuckDB contributors focused on building powerful, lightweight solutions.

We help teams get the most out of DuckDB: fast, open, and local analytics at your fingertips.

  • Query.Farm is an independent company.
  • We’re not affiliated with DuckDB Labs or the DuckDB Foundation.
  • We build on the public DuckDB project, and deeply respect the team behind it — many of whom we count as friends and collaborators in the broader DuckDB ecosystem.

Pinned Loading

  1. airport airport Public

    The Airport extension for DuckDB, enables the use of Arrow Flight with DuckDB

    C++ 349 27

  2. shellfs shellfs Public

    DuckDB extension allowing shell commands to be used for input and output.

    C++ 96 5

  3. lindel lindel Public

    DuckDB Extension Linearization/Delinearization, Z-Order, Hilbert and Morton Curves

    C++ 67 6

  4. datasketches datasketches Public

    Integrates DuckDB with the high-performance Apache DataSketches library. This extension enables users to perform approximate analytics on large-scale datasets using state-of-the-art streaming algor…

    C++ 52 3

  5. evalexpr_rhai evalexpr_rhai Public

    A DuckDB extension to evaluate the Rhai scripting language as part of SQL.

    C++ 27

  6. crypto crypto Public

    DuckDB Extension for cryptographic hash functions and HMAC

    C++ 31 7

Repositories

Showing 10 of 222 repositories
  • vgi-csharp Public

    C# SDK for VGI (Vector Gateway Interface), Query.Farm's application protocol for DuckDB worker processes

    Query-farm/vgi-csharp's past year of commit activity
    C# 0 0 0 0 Updated Sep 17, 2026
  • vgi-rpc-java Public

    Transport-agnostic RPC framework for Java built on Apache Arrow IPC — the Java port of vgi-rpc. Define services as Java interfaces; calls flow over pipe, subprocess, Unix-socket, shared-memory, or HTTP.

    Query-farm/vgi-rpc-java's past year of commit activity
    Java 2 Apache-2.0 1 0 0 Updated Sep 17, 2026
  • vgi-rpc-csharp Public

    C# port of vgi-rpc — a transport-agnostic RPC framework using Apache Arrow IPC as its wire protocol. Targets .NET 10, Windows + Linux.

    Query-farm/vgi-rpc-csharp's past year of commit activity
    C# 0 Apache-2.0 0 0 0 Updated Sep 17, 2026
  • vgi-java Public

    Java SDK for the VGI (Vector Gateway Interface) protocol — host DuckDB scalar, table, aggregate, and table-in-out functions in an external worker over Arrow IPC.

    Query-farm/vgi-java's past year of commit activity
    Java 1 0 1 0 Updated Sep 17, 2026
  • vgi-typescript Public

    TypeScript SDK for the VGI (Vector Gateway Interface) protocol — host DuckDB scalar, table, aggregate, and table-in-out functions in an external worker over Arrow IPC.

    Query-farm/vgi-typescript's past year of commit activity
    TypeScript 1 0 0 0 Updated Sep 17, 2026
  • vgi-rust Public

    Rust port of the VGI worker SDK + example fixtures (DuckDB VGI protocol)

    Query-farm/vgi-rust's past year of commit activity
    Rust 1 0 0 0 Updated Sep 17, 2026
  • vgi-go Public

    Go SDK for the VGI (Vector Gateway Interface) protocol — host DuckDB scalar, table, aggregate, and table-in-out functions in an external worker over Arrow IPC.

    Query-farm/vgi-go's past year of commit activity
    Go 1 0 0 0 Updated Sep 17, 2026
  • vgi Public

    VGI (Vector Gateway Interface) — DuckDB extension for extending DuckDB in any language over Apache Arrow IPC. No C++/compilation required.

    Query-farm/vgi's past year of commit activity
    C++ 12 0 2 0 Updated Sep 17, 2026
  • vgi-python Public

    Python SDK for the VGI (Vector Gateway Interface) protocol — host DuckDB scalar, table, aggregate, and table-in-out functions in an external worker over Arrow IPC.

    Query-farm/vgi-python's past year of commit activity
    Python 4 0 4 3 Updated Sep 17, 2026
  • vgi-rpc-typescript Public

    TypeScript server & client library for the VGI-RPC framework — Apache Arrow IPC over stdin/stdout and HTTP

    Query-farm/vgi-rpc-typescript's past year of commit activity
    TypeScript 2 Apache-2.0 0 0 6 Updated Sep 17, 2026

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