07_es_case_sensitive

# ES区分大小写

## 1、创建索引


```
DELETE indexx
PUT indexx
{
"settings": {
    "analysis": {
      "normalizer": {
        "my_normalizer": {
          "type": "custom",
          "filter": ["lowercase", "asciifolding"]
        }
      }
    }
  },  
   "mappings": {
    "type": {
      "properties": {
        "foo": {
          "type": "keyword",
          "normalizer": "my_normalizer"
        }
      }
    }
  }
}
```

## 2、插入数据
```
POST indexx/type/1
{
  "foo":"Meet"
}

POST indexx/type/2
{
  "foo":"meet"
}

POST indexx/type/3
{
  "foo":"MEET"
}
```

## 3、检索验证
```
POST indexx/type/_search
{
  "query":{
    "wildcard":{
      "foo":"*mee*"
    }
  }
}
```

## 4、聚合验证
```
POST indexx/_search
{
  "size":0,
  "aggs": {
    "foo_aggs": {
      "terms": {
        "field": "foo"
      }
    }
  }
}
```