# Page Not Found

The URL `configuration-reference/functions/arrayunionstring` does not exist.

You might be looking for one of these pages:
- [arrayUnionString](https://docs.pinot.apache.org/functions/array/arrayunionstring.md)
- [arraySliceString](https://docs.pinot.apache.org/functions/array/arrayslicestring.md)
- [arrayToString](https://docs.pinot.apache.org/functions/array/arraytostring.md)
- [arrayUnionInt](https://docs.pinot.apache.org/functions/array/arrayunionint.md)
- [arrayIndexOfString](https://docs.pinot.apache.org/functions/array/arrayindexofstring.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., `/functions/array/arrayunionstring.md`)
- Use `Accept: text/markdown` header for content negotiation