pg_stat_statements: everything it can't

Part one made the core case: pg_stat_statements counts, it doesn&#x27;t record. It walked through how the queryid jumble fragments one logical query into many rows, how the first-seen text freezes your per-request tags, and how the averages bury the p99 that actually pages you. All of that was about data the extension has and distorts. This part is about the rest: the entries it silently throws…