A change made in 2024 to send identifiers rather than snapshots, and what a year of it produced. The lookup cost is trivial when the consumer shares a…
A monthly export building a four hundred thousand row array before writing a single byte. The generator only helps if the source is also lazy — a cursor…
A message carrying the full order including every line, every address and the customer record, because it was easier than a lookup. Fat messages are defended as avoiding…
One person on an arm64 machine, and an image built for amd64 running under emulation at a third of the speed. Emulated cross-building is correct and slow enough…
A query with a hand-written optimiser hint from 2019, re-examined after an upgrade, where the hint was now choosing the worse plan. A hint is a decision frozen…