opensearch-docs-cn/_query-dsl/match-all.md

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---
layout: default
title: Match all queries
nav_order: 65
---
# Match all queries
The `match_all` query returns all documents. This query can be useful in testing large document sets if you need to return the entire set.
```json
GET _search
{
"query": {
"match_all": {}
}
}
```
{% include copy-curl.html %}
The `match_all` query has a `match_none` counterpart, which is rarely useful:
```json
GET _search
{
"query": {
"match_none": {}
}
}
```
{% include copy-curl.html %}