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Query.Farm

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

🚜 Query.Farm

We build with DuckDB β€” extensions, products, consulting, and tools.

πŸ¦† 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.

πŸ’Ό What We Offer

🧩 DuckDB Extension Development

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

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

πŸ› οΈ 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 β€” embedded, at the edge, or in the cloud.

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

πŸ‘‹ Let’s Talk

If you’re building with DuckDB β€” or want to β€” we’d love to help.

πŸ“¬ hello@query.farm

🌾 About Query.Farm

We’re data people β€” 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 β€” many of whom we count as friends and collaborators in the broader DuckDB ecosystem.

Pinned Loading

  1. airport airport Public

    DuckDB extension for querying, modifying, and storing data through Apache Arrow Flight servers.

    C++ 351 27

  2. shellfs shellfs Public

    DuckDB extension for reading from and writing to Unix shell pipelines through file operations.

    C++ 97 5

  3. lindel lindel Public

    DuckDB extension for encoding and decoding multidimensional values with Hilbert and Morton (Z-order) space-filling curves.

    C++ 67 6

  4. datasketches datasketches Public

    DuckDB extension for approximate analytics with Apache DataSketches: distinct counts, quantiles, frequent items, set operations, and sampling.

    C++ 56 4

  5. evalexpr_rhai evalexpr_rhai Public

    DuckDB extension for running Rhai scripts and evaluating expressions in SQL queries.

    C++ 27

  6. crypto crypto Public

    DuckDB extension for cryptographic hashes, HMACs, key derivation (PBKDF2, HKDF, scrypt, Argon2), and secure random bytes.

    C++ 31 7

Repositories

Showing 10 of 243 repositories
  • vgi-sqlite Public

    SQLite driver for VGI (Vector Gateway Interface)

    Query-farm/vgi-sqlite's past year of commit activity
    C++ 0 0 0 0 Updated Nov 4, 2026
  • Query-farm/query-farm-astro's past year of commit activity
    MDX 0 0 0 0 Updated Nov 4, 2026
  • minijinja Public Forked from Query-farm/tera

    DuckDB extension for rendering Jinja2-compatible templates directly from SQL using MiniJinja.

    Query-farm/minijinja's past year of commit activity
    C++ 8 MIT 2 0 0 Updated Nov 4, 2026
  • bitfilters Public

    DuckDB extension for probabilistic set-membership testing with Bloom, XOR, binary fuse, and quotient filters.

    Query-farm/bitfilters's past year of commit activity
    C++ 11 1 0 0 Updated Nov 4, 2026
  • vgi-rpc-python Public

    Transport-agnostic RPC framework built on Apache Arrow IPC serialization. Define RPC interfaces as Python Protocol classes with automatic schema derivation, typed client proxies, and streaming support.

    Query-farm/vgi-rpc-python's past year of commit activity
    Python 15 Apache-2.0 1 0 4 Updated Nov 4, 2026
  • vgi-rpc-cpp Public
    Query-farm/vgi-rpc-cpp's past year of commit activity
    C++ 0 Apache-2.0 0 0 0 Updated Nov 4, 2026
  • duckdb-grainlift Public

    DuckDB extension for grainlift: query any grainlift-exposed ADBC database from DuckDB and DuckDB-WASM (Haybarn), over HTTP or Iroh

    Query-farm/duckdb-grainlift's past year of commit activity
    C++ 0 MIT 0 0 0 Updated Nov 4, 2026
  • cronjob Public

    Experimental DuckDB extension for scheduling SQL queries with cron expressions while the DuckDB process is running.

    Query-farm/cronjob's past year of commit activity
    C++ 57 MIT 1 7 (3 issues need help) 1 Updated Nov 3, 2026
  • vgi-rpc-rust Public

    Transport-agnostic RPC framework on Apache Arrow IPC β€” Rust port of vgi-rpc

    Query-farm/vgi-rpc-rust's past year of commit activity
    Rust 2 Apache-2.0 0 0 0 Updated Nov 3, 2026
  • vgi-cpp Public

    VGI worker SDK for C++ β€” build DuckDB-facing workers on Apache Arrow IPC

    Query-farm/vgi-cpp's past year of commit activity
    C++ 0 0 0 0 Updated Nov 3, 2026

People

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