es5.5, 高亮沒(méi)有生效，例子是照搬官方文檔的，但返回結(jié)果沒(méi)有highlight字段，是不是某些設(shè)置問(wèn)題？　https://www.elastic.co/guide/...

GET /1266/default_type/_search
{
  "query" : {
    "match" : {
      "_all" : "who"
    }
  },
  "highlight": {
        "fields" : {
            "_all" : {}
        }
  }
}

返回

{
  "took": 50,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "hits": {
    "total": 1000,
    "max_score": 0.002578699,
    "hits": [
      {
        "_index": "1266",
        "_type": "default_type",
        "_id": "8",
        "_score": 0.002578699,
        "_source": {
          "object_id": "8",
          "film_id": 8,
          "title": "AIRPORT POLLOCK",
          "description": "A Epic Tale of a Moose And a Girl who must Confront a Monkey in Ancient India",
          "release_year": 2006,
          "language_id": 1,
          "original_language_id": null,
          "rental_duration": 6,
          "rental_rate": "4.99",
          "length": 54,
          "replacement_cost": "15.99",
          "rating": "R",
          "special_features": "Trailers",
          "last_update": "2006-02-15 05:03:42"
        }
      },