# Page Not Found

The URL `users/user-guide-query/multi-stage-query/understanding-stages` does not exist.

You might be looking for one of these pages:
- [Understanding Stages](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/multi-stage-query/understanding-stages.md)
- [Stats](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/multi-stage-query/understanding-stage-stats.md)
- [Operator Types](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/multi-stage-query/operator-types.md)
- [Explain Plan](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/multi-stage-query/explain-plan-1.md)
- [Optimizing Joins](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/multi-stage-query/optimizing-joins.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.pinot.apache.org/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.pinot.apache.org/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/build-with-pinot/querying-and-sql/multi-stage-query/understanding-stages.md`)
- Use `Accept: text/markdown` header for content negotiation