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Everyone who’s gone at least knee-deep in photography knows there’s this idea of the exposure triangle: aperture, shutter speed, and ISO. Depending on what you’re going for artistically, you adjust the three parameters, knowing that there…
pg_plan_advice is expected to land in PostgreSQL 19. That makes this a good moment to look at query hints — what they are, what every other major database does with them, and how PostgreSQL ended up being the obvious outlier. Three parts.…
Every 1 KB insert in Postgres becomes ~2.5 KB of committed I/O before it's done. Here's where the multiplier comes from, and where the tuning knobs run out.
On a PostgreSQL build with assertions enabled, run the standard make check-world suite with a small debugging extension called pg_pathcheck loaded. It will report on pointers to freed memory in the planner's path lists. Such dangling…