No highlight in elasticsearch with Fuzzy Like This Query

elastic-highlight-fuzzy

QUERY: 

curl -XGET 'http://localhost:9200/forum_4/dialog/_search?pretty=true' -d '{"highlight": {"pre_tags": ["<span class=highlighted>"], "fields": {"title": {"fragment_size": 150, "number_of_fragments": 1}}, "post_tags": ["</span>"]}, "query": {"fuzzy_like_this": {"like_text": "i18n", "fields": ["title"]}}}}'

RESPONSE:


{
  "took" : 5,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 1,
    "max_score" : 1.75,
    "hits" : [ {
      "_index" : "forum_4",
      "_type" : "dialog",
      "_id" : "1245",
      "_score" : 1.75, "_source" : {"other_comments_text": "", "tags": "", "text": "\t Hi  I\u00b4ve seen your version og getsatisfaction and I\u00b4m wondering how could I translate into Spanish and German\u00bf Can you advice\u00bf \n\n\t my email:  natalia.mindykowska@ibotanika.com  ", "num_votes": 1, "topic": "Q", "last_activity": "2009-07-20T12:24:25", "user": {"first_name": "Natalia", "id": 488}, "pub_date": "2009-07-20T10:22:26", "id": 1245, "org_comments_text": "Some reply", "archived": false, "title": "i18n of feedback ", "num_comments": 1, "absolute_url": "/org/kundo/d/i18n-of-feedback/"}
    } ]
  }
}

MAPPING:
{
    'title': {
        'boost': 2.5,
        'type': 'string',
        'term_vector': 'with_positions_offsets'
    },
    'text': {
        'boost': 1.0,
        'type': 'string'
    },
    'org_comments_text': {
        'boost': 0.5,
        'type': 'string'
    },
    'other_comments_text': {
        'boost': 0.2,
        'type': 'string'
    },
    'tags': {
        'boost': 0.2,
        'type': 'string'
    },
    'absolute_url': {
        'type': 'string',
        'index': u'not_analyzed',
    },
    'topic': {
        'type': 'string',
        'index': u'not_analyzed',
    },
    'pub_date': {
        'type': 'date',
        'index': u'not_analyzed',
    },
    'last_activity': {
        'type': 'date',
        'index': u'not_analyzed',
    },
    'num_comments': {
        'type': 'integer',
        'index': u'not_analyzed',
    },
    'num_votes': {
        'type': 'integer',
        'index': u'not_analyzed',
    },
    'archived': {
        'type': 'boolean',
        'index': u'not_analyzed',
    },
    'id': {
        'type': 'integer',
        'index': u'not_analyzed',
        },
    'user': {
        'type': 'multi_field',
        'index': u'not_analyzed',
        'fields': {
            'id': {
                'type': 'integer',
                'index': u'not_analyzed',
            },
            'first_name': {
                'type': 'string',
                'index': u'not_analyzed',
            },
        }
    }
}