The interactive format is especially useful for teaching version-specific behavior, but I’d pair each example with EXPLAIN (ANALYZE, BUFFERS) so readers can see

The interactive format is especially useful for teaching version-specific behavior, but I’d pair each example with EXPLAIN (ANALYZE, BUFFERS) so readers can see when the planner’s choice changes on a real workload. A short note about statistics freshness and extended statistics would also help prevent readers from treating the demo plan as universally optimal.