# PGSimCity: Understanding PostgreSQL's Inner Workings

A new explainer tool called PGSimCity simulates how PostgreSQL processes queries and manages data. It provides an interactive way for developers and database enthusiasts to visualize PostgreSQL's mechanics, making complex concepts more accessible. This matters for improving database performance tuning and educational purposes.

**Importance:** 2/5

## Sources

### Technology
- [Hacker News](https://nikolays.github.io/PGSimCity/) — Mon, 27 Jul 2026 00:19:04 +0000