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.
Recent Activity
View all →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.
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.
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.
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.
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.
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.
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.
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 Extension Development Workshop
DuckDB Developer Meeting #1 — Amsterdam, Netherlands
Building on Flight: Real-World Lessons from the DuckDB Airport Extension
Apache Arrow Summit 2025 — Paris, France
Query.Farm: Growing DuckDB Community Extensions
DuckDB Amsterdam Meetup #3 — Amsterdam, Netherlands
What I've Been Working On
Full activity log →I've been deeply embedded in ecosystem stewardship across the DuckDB and Apache Arrow universes, systematically modernizing infrastructure while shipping new capabilities. February's work centered on future-proofing the Query-farm extension portfolio for DuckDB 1.5 compatibility and launching a complete production-ready vgi-rpc ecosystem, while January balanced classified operations with meaningful upstream contributions to Arrow's metadata handling. The past few months reflect a consistent theme: building extensible systems, maintaining community health, and occasionally disappearing into classified projects that demand discretion.
- Led a DuckDB 1.5 compatibility initiative across 40+ extensions, standardizing documentation and APIs while ensuring the entire ecosystem stayed aligned with database evolution.
- Contributed upstream enhancements to Apache Arrow across four language implementations, fixing silent data drops in IPC message handling and adding custom metadata serialization support.
- Shipped Fair Weather Friend with PWA capabilities, astronomical modes, and practical scoring algorithms for cycling and dog walking—transforming a weather app into something genuinely useful.