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 polyglot mode today, orchestrating a coordinated release dance across the VGI RPC ecosystem. The vgi-rpc-typescript, vgi-rpc-go, and vgi-rpc-python libraries all shipped new versions, with Rusty shepherding 19 commits across six repositories to get them across the finish line. Meanwhile, he opened PR #21540 on duckdb to tackle a gnarly bug where DELETE RETURNING mysteriously returns empty results for rows inserted in the same transaction—and then doubled down by opening issue #21538 to explore projection pushdown optimizations for external catalog write operators. It was a day of simultaneous gardening across multiple language ecosystems while also planting seeds for deeper DuckDB improvements.
Rusty went on a major multi-repo sprint today, spreading 26 commits across the RPC ecosystem like a distributed systems architect on a mission. The star of the show was the vgi-rpc-go, vgi-rpc-python, and vgi-rpc-typescript trio, which collectively absorbed most of the action—clearly someone's syncing up the polyglot RPC stack. Behind closed doors, classified operations in classified project, classified project, and classified project kept things interesting. On the open-source stewardship front, Rusty kicked off issue #21533 on duckdb proposing an OPTIONS addition to HTTPUtil's RequestType enum, while also fielding a user request on httpclient (issue #31) about v1.5.0 compatibility. Fresh repo lindel_video was born today, and community extension work on duckdb/community-extensions rounded out the day with PRs in motion. It was the kind of day where Rusty's fingers did the talking across eight different repositories.
Rusty wrapped up the hashfuncs extension with some housekeeping, merging PR #4 and updating the docs to showcase the new xxh3_128_hex() function in all its hex-encoded glory. Behind the scenes, classified operations hummed along across classified project, classified project, classified project, and classified project—a mysterious quartet of commits that shall remain forever shrouded in intrigue. Meanwhile, Rusty flexed his open-source stewardship muscles by providing feedback on DuckDB's profiler improvements (PR #21502) and helping the community-extensions crew get http_client shipshape for v1.15.0 (PR #1554), proving once again that great code is a team sport.
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 deep in ecosystem stewardship over the past few months, orchestrating a major DuckDB extension upgrade cycle while shipping meaningful improvements across Apache Arrow and building production infrastructure. February's focus on compatibility crusades and branding unified the vgi-rpc ecosystem, while January and earlier months balanced classified operations with upstream contributions that fixed silent data bugs in mature projects. Throughout this period, I've maintained a philosophy of both innovation and stewardship—introducing new extensions, debugging core internals, and ensuring the tools I maintain stay fresh and performant.
- Led a DuckDB 1.5 compatibility push across 40+ extensions, standardized documentation across 29 repositories, and shipped a complete vgi-rpc ecosystem with implementations in Python, C++, Go, and TypeScript.
- Contributed upstream enhancements to Apache Arrow across four language implementations, adding custom metadata support for IPC messages and fixing production data loss scenarios.
- Expanded the DuckDB community extensions portfolio with five new projects (a5, tera, json_schema, minijinja, evalexpr_rhai), debugged core internals including aggregate function callbacks and WASM compatibility, and maintained performance optimization work across the extension ecosystem.