Rusty Conover

Rusty Conover

Data infrastructure engineer and founder of Query.Farm. Building DuckDB extensions, scaling data platforms, and writing about what I learn along the way.

DuckDB Apache Arrow Rust C++ TypeScript

Recent Activity

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7/10

Rusty had his hands in multiple pots today, juggling both classified operations and open-source stewardship with impressive dexterity. Behind closed doors, classified project and classified project received attention, while in the public eye, he was busy squashing bugs and reviewing community feedback across the DuckDB ecosystem. He tackled a gnarly issue on adbc_scanner (issue #5) involving float/double corruption and WHERE filter mishaps, then pivoted to provide community support on duckdb-httpfs with thoughtful replies on compression-related issues (#278 and #263). New PRs landed on both duckdb-community-extensions and duckdb-httpfs, while vgi-rpc-python got a fresh release and multiple commits. With 8 commits spread across 6 repos and sustained engagement in the DuckDB community, Rusty proved once again that he's the kind of maintainer who shows up for his users.

8 commits 2 PRs 1 issues
community-extensions community-extensions adbc_scanner duckdb-httpfs duckdb-httpfs + private
8/10

Rusty was in release mode today, shipping no fewer than five releases of vgi-rpc-python while steadily advancing the polyglot RPC ecosystem across Go, TypeScript, and Python variants. The vgi-rpc- family got a thorough workout with 19 commits spread across multiple language implementations—a coordinated effort to keep the protocol layers in sync. He also poked around in rustyconover/duckdb and caught up with Tom's connections.duckdb work, plus chimed in on the Apache Arrow.js front. Behind closed doors, classified operations on classified project and classified project continued brewing, adding an air of mystery to an otherwise prolific day of distributed systems housekeeping.

19 commits
duckdb connections.duckdb arrow-js + private
9/10

Rusty had an extraordinarily prolific day, juggling 49 commits across 11 repositories while simultaneously playing open-source steward across the DuckDB ecosystem. The spotlight falls on the RPC layer—vgi-rpc-python, vgi-rpc-go, and vgi-rpc-typescript all received multiple releases and steady progress, suggesting a coordinated push toward stability. Behind the scenes, classified operations at classified project, classified project, classified project, and classified project hummed along with their own mysterious agendas. On the community front, Rusty was everywhere: fielding thoughtful feedback on DuckDB's CLI extensibility (issues #21197 and #21201), reviewing and advising on critical adbc_scanner fixes, shepherding improvements through the duckdb/community-extensions pipeline, and providing detailed code review on Apache Arrow.js schema validation PRs. The arrow-js work was particularly hands-on, with multiple review cycles and comment exchanges ensuring data integrity stays rock-solid. A day that balanced deep focus work with genuine community leadership.

49 commits 3 PRs
arrow-js duckdb duckdb adbc_scanner community-extensions community-extensions arrow-js + private

Posts & Events

Query.Farm

VGI Injector: A Tiny HTTPS Download-and-Execute Binary in Zig

I needed a self-contained binary that downloads a program over HTTPS and exec's it — small enough to run in a FROM scratch container with nothing else. Go and Rust couldn't get small enough. Zig could.

DuckDB

TIME Data Type Compatibility Across Databases

A survey of the TIME data type across 14 databases, comparing supported ranges, maximum values, and whether the special value 24:00:00 is accepted.

Query.Farm

Telemetry for DuckDB Extensions Without the Pain

I open-sourced the telemetry client I use across Query.Farm's DuckDB extensions. It's two files, one function call, and it only collects platform and version info.

Query.Farm

Releasing vgi-rpc: An RPC Framework Built on Apache Arrow

I built an RPC framework for Python that uses Apache Arrow IPC as the wire format and Python Protocol classes as the interface definition. No .proto files, no codegen — just type annotations.

DuckDB

Acronym-Aware Case Conversions in the DuckDB Inflector Extension

The Inflector extension for DuckDB now supports configurable acronyms, so case conversions preserve terms like HTML, API, and URL as fully uppercase — configured through a native DuckDB setting.

DuckDB

DuckDB Extension Development Workshop

DuckDB Developer Meeting #1 — Amsterdam, Netherlands

Apache Arrow

Building on Flight: Real-World Lessons from the DuckDB Airport Extension

Apache Arrow Summit 2025 — Paris, France

Query.Farm

Query.Farm: Growing DuckDB Community Extensions

DuckDB Amsterdam Meetup #3 — Amsterdam, Netherlands

What I've Been Working On

Full activity log →

I've spent the last few months as an ecosystem steward for the DuckDB universe, orchestrating compatibility upgrades, shipping production infrastructure, and contributing upstream enhancements across multiple languages and projects. The work balanced high-impact core improvements—DuckDB 1.5 compatibility across 40+ extensions, Apache Arrow metadata support, and classified operations—with delightful surface-level features like astronomical weather modes. Each month brought systematic infrastructure work alongside meaningful open-source contributions, proving that maintenance and innovation aren't mutually exclusive.

  • Led a DuckDB 1.5 compatibility campaign across the Query-farm extension portfolio, standardizing 29 repositories and future-proofing critical extensions like airport, shellfs, and webmacro.
  • Shipped a complete vgi-rpc ecosystem with production implementations in Python, C++, Go, and TypeScript, including unified branding and comprehensive documentation infrastructure.
  • Contributed upstream enhancements to Apache Arrow across JavaScript, Swift, Rust, and Go, fixing silent data drops in RecordBatch IPC message handling while adding custom metadata support.