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 went full PR artillery mode, launching 15 pull requests across the Apache Arrow and DuckDB ecosystems without merging a single one—planting seeds for future glory. He deep-dove into arrow-js with multiple review rounds on Apache's repo, while simultaneously carpet-bombing community-extensions and duckdb-web with improvements and chipping in community support on issue #6531. Behind closed doors, classified project and classified project consumed 19 classified events, suggesting covert operations are heating up nicely.
Rusty went full whack-a-mole across the Query-farm extension ecosystem, dropping 26 commits across 18 different repos—from tributary and airport to the delightfully named shellfs and fuzzycomplete. While tending to this expansive DuckDB extension garden (including updates to quickjs, rapidfuzz, textplot, and friends), he also slipped behind closed doors for some classified tinkering on classified project and classified project.
Rusty spent the day deep in the shadows, channeling all five commits into classified operations. Four commits went into classified project while one landed in classified project—both shrouded in the usual secrecy and intrigue. No public repos saw action today, making this a full-fledged behind-closed-doors affair where the only witnesses are his IDE and whatever NDAs he's sworn to uphold.
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
DuckDB, Apache Arrow, & the Future of Data Engineering
The Hedgineer Podcast (S2E3)
Streaming Data into DuckDB with Arrow and Python Generators
How to use Python generators and Apache Arrow's RecordBatchReader to stream large datasets into DuckDB without loading everything into memory at once.
Airport for DuckDB: Letting DuckDB take Apache Arrow Flights
DuckCon #6 — Amsterdam, Netherlands
Cron Expressions For DuckDB
Introducing a DuckDB extension that interprets cron expressions to generate scheduled timestamps directly in SQL, built with the Rust croner crate.
What I've Been Working On
Full activity log →I've spent the last few months deep in the DuckDB ecosystem—modernizing telemetry across dozens of extensions, shipping performance improvements to Apache Arrow's serialization layer, and building new tools like a progressive web app and memory benchmarking suite. My work balanced public open-source contributions with classified projects, all while maintaining the Query-farm extension empire through major version migrations and community support. Whether it was enabling DuckDB 1.5 across the extension landscape, discovering and fixing dictionary serialization bugs, or adding personality to weather forecasting, I've tried to prove that high-output months can combine infrastructure stewardship with genuine innovation.
- Modernized telemetry infrastructure across 33 Query-farm extensions and made Apache Arrow history by uncovering and fixing vanishing dictionary messages in IPC serialization with proper public APIs.
- Enabled DuckDB 1.5 ecosystem compatibility while conducting classified development work across multiple projects, balancing operational security with transparent open-source citizenship.
- Built fair-weather into a progressive web app with cycling modes and weather-aware features, orchestrated 50+ ecosystem dependency bumps, and debugged everything from WASM linking gremlins to core database internals.