https://xminxmax.dev/posts/Recent content in Posts on xmin/xmaxHugoen-usThu, 05 Nov 2026 00:00:00 +0000https://xminxmax.dev/posts/pg-scalpel-scripting-a-live-backend/Thu, 05 Nov 2026 00:00:00 +0000https://xminxmax.dev/posts/pg-scalpel-scripting-a-live-backend/pg_scalpel puts a Janet interpreter inside a running Postgres backend. From there you can look up any function or struct by name, call the server’s own C, and swap a function out for your own code, with no recompile and no restart. Here’s how it works, and what it costs.https://xminxmax.dev/posts/etw-trace-probes-windows/Fri, 30 Oct 2026 00:00:00 +0000https://xminxmax.dev/posts/etw-trace-probes-windows/PostgreSQL has fifty-seven static trace probes, but no backend for Windows’ own tracing facility. A patch in the commitfest connects them to Event Tracing for Windows, so Postgres events and kernel events can be recorded in the same trace.