DatabasesPercona Database Blog
Databases
We ran DuckDB MySQL storage engine at scale factor 500. It is around 500 GB of raw TPC-H, three billion lineitem rows on an 80-core server with 187 GB of RAM. Three engines on the same box: InnoDB, our MySQL+DuckDB engine, and plain DuckDB…
Before diving into this final post covering new Postgres 19 features, I just want to say it's been a wild ride. Postgres 19 has been a veritable treasure trove of enhancements, perhaps more than any previous release; or maybe that's just…
Build and verify PostgreSQL row-level security for AI agents with non-owner roles, FORCE RLS, explicit policies, controlled writes, and denial tests.
It can looks like (2026-08-06 17:44:32) postgres=# \luacode Enter code to be copied followed by a newline. End with a backslash and a period on a line by itself, or an EOF signal. >> function x(n) >> return n + 10 >> end >> \. (2026-08-06…