elasticsearch-ML : "Searching indexed fields without analysing" sample

wildcard_sample.txt

curl -XPUT "http://localhost:9200/wildcard_sample"

curl -XPOST "http://localhost:9200/wildcard_sample/users/_mapping" -d'
{
   "users": {
      "properties": {
         "User_Name": {
            "type": "multi_field",
            "fields": {
               "User_Name": {
                  "type": "string",
                  "omit_norms": true
               },
               "raw": {
                  "type": "string",
                  "index": "not_analyzed",
                  "omit_norms": true,
                  "index_options": "docs",
                  "include_in_all": false,
                  "ignore_above": 256
               }
            }
         }
      }
   }
}'

curl -XPOST "http://localhost:9200/wildcard_sample/users/1" -d'
{
    "User_Name" : "bob.smith-jones"
}'

curl -XPOST "http://localhost:9200/wildcard_sample/users/_search" -d'
{
    "query": {
        "query_string": {
           "query": "User_Name.raw:bob.smith-j*"
        }
    }
}'