**How to query with fields which have whitespace in name?**

**Example:**

    PUT my-index/my-type/my-id
    {
      "field name" : "field_value"
    }

**Answer:**

_we need to use **backslash** to escape **whitespace** character as shown below:_

    GET my_index/_search
    {
      "query":{
        "query_string": {
          "query": "field\\ name:\"field_value\""
          }
       }
    }