# Page Not Found

The URL `users/user-guide-query/scalar-functions` does not exist.

You might be looking for one of these pages:
- [GapFill Function for Time-Series Dataset](https://docs.pinot.apache.org/build-with-pinot/querying-and-sql/sql-syntax/gap-fill-functions.md)
- [FUNNELEVENTSFUNCTIONEVAL](https://docs.pinot.apache.org/functions/aggregation/funneleventsfunctioneval.md)
- [Overview](https://docs.pinot.apache.org/functions/functions.md)
- [Schema Evolution](https://docs.pinot.apache.org/tutorials/data-ingestion/schema-evolution.md)
- [ST_Union](https://docs.pinot.apache.org/functions/geospatial/stunion.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/sql-syntax/gap-fill-functions.md`)
- Use `Accept: text/markdown` header for content negotiation