elasticsearch. guide

A query that executes a query string against a specific field. It is a simplified version of query_string query (by setting the default_field to the field this query executed against). In its simplest form:

{
    "field" : { 
        "name.first" : "+something -else"
    }
}

Most of the query_string parameters are allowed with the field query as well, in such a case, the query should be formatted as follows:

{
    "field" : { 
        "name.first" : {
            "query" : "+something -else",
            "boost" : 2.0,
            "enable_position_increments": false
        }
    }
}