# Page Not Found

The URL `manual-zh/core/sharding-shard-key-indexes.html` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Sparse 索引](https://docs.mongoing.com/indexes/index-properties/sparse-indexes.md)
- [分片参考](https://docs.mongoing.com/fen-pian/sharding-reference.md)
- [按应用或客户细分数据](https://docs.mongoing.com/fen-pian/zones/an-ying-yong-huo-ke-hu-xi-fen-shu-ju.md)
- [部分索引](https://docs.mongoing.com/indexes/index-properties/partial-indexes.md)
- [重启一个分片集群](https://docs.mongoing.com/fen-pian/restart-a-sharded-cluster.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.mongoing.com/indexes/index-properties/sparse-indexes.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.mongoing.com/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.mongoing.com/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/indexes/index-properties/sparse-indexes.md`).

You may also use `Accept: text/markdown` header for content negotiation.