Pagination looks like the least interesting problem in backend engineering — until the page that took 30 ms at depth
Continue readingPagination at Depth: Why OFFSET Falls Over and How to Build Cursors That Don’t
Every slow query investigation eventually arrives at the same place: the EXPLAIN output. It is the single most information-dense tool
Continue readingReading the Plan: What EXPLAIN ANALYZE Is Actually Telling You
Almost every API starts its pagination life with LIMIT 20 OFFSET 40. It’s the pattern every ORM hands you, it
Continue readingPagination That Doesn’t Fall Apart at Page 50,000: Keyset Cursors Done Right
A slow query arrives. Someone runs EXPLAIN ANALYZE, pastes the output into a search engine, and a verdict comes back:
Continue readingReading EXPLAIN ANALYZE Like a Planner: A PostgreSQL Field Guide
Ask a PostgreSQL database administrator what kills databases in production and you’ll hear about wraparound — the event where a
Every team seems to arrive at the same configuration at some point: the database feels slow, someone searches for a
Continue readingConnection Pool Sizing: The Math That Says Fewer, Not More
Offset pagination is the first thing everyone learns and the first thing that falls over in production. The product manager
Continue readingBeyond OFFSET: Keyset Pagination in PostgreSQL That Actually Scales
# POST 2: Reading EXPLAIN A query that ran in 20 milliseconds yesterday takes 40 seconds today. Nothing in the
Continue readingReading EXPLAIN Like a Planner: Debugging Slow Queries in PostgreSQL
Most teams that ship a retrieval-augmented generation feature never measure it. The demo looks good, a few hand-picked questions return
Continue readingStop Vibing Your RAG Pipeline: Recall@k, MRR, and NDCG in an Afternoon
PgBouncer has quietly become mandatory infrastructure for PostgreSQL at scale. If you run more than a few hundred client connections