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2 articles- blogArdent Performance Computing·21 Oct 20264.9A field report showing that recovery_prefetch on Postgres replicas can quietly cause outages, how it was diagnosed, and when to turn it off.
- blogPlanetScale Blog·21 Oct 20264.2Postgres
ON DELETE CASCADEcan delete huge row counts in one transaction, causing long locks and surprises, so explicit batched deletes are safer.