# Version / Index Boost

## Version

返回每个搜索匹配的版本。

```
GET /_search
{
    "version": true,
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
```

## Index Boost

允许在跨多个索引搜索时为每个索引配置不同的提升级别。 当来自一个索引的命中数大于来自另一个索引的命中数时（这是每个用户都有索引的社交图），这是非常方便的。

```
GET /_search
{
    "indices_boost" : {
        "index1" : 1.4,
        "index2" : 1.3
    }
}
```


---

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