Episode 5: Database Decisions

<p><em>Same uncle, same nephew. Part 1 was about designing and guarding data. Part 2 is about the small, easy-to-miss mistakes that quietly destroy a database over time —

<p><em>This series follows a fictional conversation between an experienced engineer and his nephew. Every episode explores one stage of how software moves from an idea to

<p>On January 28, 2026, Moltbook launched to considerable fanfare. The pitch was bold: an "agent-first, human-second" social network where 1.5 million autonomous AI agents could

<p><em>B-tree internals, column order and planner statistics in Postgres 19, checked against MongoDB's ESR rule.</em></p> <p>Most "add an index" advice stops at <code>CREATE

<blockquote> <p>The pager went off at 2:14 AM.</p> </blockquote> <p>If you’ve spent any time operating distributed systems, you know that sound. It doesn’t just wake you up; it