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 was a release machine today, shepherding multiple versions of vgi-rpc-typescript and vgi-rpc-python out the door with surgical precision across 24 commits. Behind the scenes, he tackled some gnarly HTTP filesystem plumbing on duckdb-httpfs, opening PR #271 to address a pesky CURL client tracking issue where total_bytes_received wasn't getting its due diligence. He also forked duckdb-httpfs for some undisclosed local experimentation—sharpening the tools before taking them public. Meanwhile, classified operations on classified project and classified project hummed along in the background, keeping the mystery alive. A day of precision engineering: shipping releases, squashing bugs, and maintaining the infrastructure that keeps the Query-farm ecosystem humming.
Rusty was a busy bee today, shipping multiple releases on vgi-rpc-python with 5 commits across that repo alone, keeping the momentum high with push events and release cycles. Behind the scenes, classified operations at classified project, classified project, classified project, and classified project required attention—because apparently some projects demand discretion. On the open-source front, Rusty was in full stewardship mode, providing expert feedback on issue #5 in adbc_scanner regarding float corruption and ADBC driver quirks, and diving deep into a thorny buffer overread bug in PR #21083 on the main duckdb repository—contributing multiple rounds of review and guidance to help crush that Arrow dictionary conversion crash. A solid day of shipping, reviewing, and keeping the DuckDB ecosystem healthy.
Rusty shipped a release for vgi-rpc-python, marking another milestone for the RPC toolkit. While the day saw zero commits and no PRs merged, the release event itself represents the culmination of prior work—sometimes the best days are about crossing the finish line rather than grinding new code.
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
DuckDB, Apache Arrow, & the Future of Data Engineering
The Hedgineer Podcast (S2E3)
What I've Been Working On
Full activity log →I've spent the last few months as a deep-ecosystem steward, orchestrating major infrastructure upgrades and cross-language contributions across the DuckDB and Apache Arrow ecosystems. February culminated in shipping a complete vgi-rpc production ecosystem with implementations across four languages, while January and the tail end of 2025 focused on future-proofing extension portfolios and hunting down subtle data bugs in mature systems. Throughout this period, I've balanced high-visibility open-source work with meaningful performance optimization and cryptographic hardening across multiple domains.
• Led a DuckDB 1.5 compatibility push that standardized 29+ repositories and opened 40+ PRs across extensions like airport, shellfs, and webmacro to ensure forward compatibility.
• Contributed upstream enhancements to Apache Arrow across four language implementations, fixing silent data loss in RecordBatch IPC messages through custom metadata support and public serialization APIs.
• Shipped Fair Weather Friend with practical weather scoring modes including cycling-specific metrics and dog walking safety alerts alongside a complete, production-ready vgi-rpc ecosystem with unified branding and SEO infrastructure.