PostgreSQL at Scale: Why Bulk Inserts Beat Row-by-Row Writes
When scaling a backend, small inefficiencies add up fast. One of the most impactful improvements in PostgreSQL is switching from row-by-row inserts to bulk inserts. This approach can reduce write time by over 70%, with clear benefits even at small batch sizes. In this post, I break down why it works — and back it up with real-world benchmarks.