rusty.today

Work in cupola focused on stabilizing the VGI extension configuration. Two commits addressed pinning concerns: the first pinned the VGI extension release to a specific version, and the second refined that approach by pinning VGI to a loadable immutable bu

The companion to my post on DuckDB upgrade speed. Once you strip out the CI traffic that is 70% of my telemetry, the extension catalog isn't the monopoly the load counts imply or the flat field the raw config-days imply - and a third of real installations

Nine months of telemetry from Query.Farm's DuckDB extensions - 110 million loads - show each release landing slower than the one before it. Fourteen days in, v1.5.0 reached 33.7% of the population I can see; v1.5.5 reached 12.1%. The decline survives excl

You have a large Parquet file and an API that has to return its contents, but responses have a size ceiling, so the caller pages through it. LIMIT/OFFSET is the obvious way to write that and it is the wrong one. I measured file_row_number against it: 2.53

When DuckDB ships a new version, every community extension has to be rebuilt against it before anyone can install one. I measured how much of the catalog is actually there when a release lands, how long extension updates take to merge, and why the same bu

A DuckDB extension that compiles for WebAssembly has only proven that it compiles. Whether it loads, and whether it actually runs, are separate questions. I built a Node harness to ask them across 124 community extensions. Here's what it found and the fix

Quack - the new client/server protocol extension for DuckDB - was announced today. It's been built since November 2025, almost exactly as long as I've been building VGI. Here's what's interesting, what's surprising, and where the two projects converge and

A working status page for the Arrow-related issues and PRs I've filed against duckdb/duckdb - the UNION saga, schema/data disagreements in nested appenders, type fidelity through round-trips, and the bigger question of how defensive the C Data Interface s

A detailed comparison of GeoSilo's delta-integer encoding against GeoArrow's columnar float64 layout with Parquet BYTE_STREAM_SPLIT, covering compression ratios, precision tradeoffs, and when each approach wins.

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.