如何在Elasticsearch Java客户端中使用postQuery或setQuery加入建议

Question

我在java elastisearch客户端v6.6.0中有建议问题 我有这样的文件：

{
 "_index": "index_a",
 "_type": "type1",
 "_id": "id1",
 "_score": 0.0005112039,
 "_source": {
    "city": "city name",
    "someFeature": false,
    "suggestions": [
         {
          "input": "city name",
          "weight": 492
         },
         {
          "input": "city",
          "weight": 498
         },
         {
          "input": "name",
          "weight": 498
         }
     ]
  }
}

然后我创建请求：

        SearchResponse suggest(String index, String type,
    CompletionSuggestionBuilder completionSuggestionBuilder,
    QueryBuilder queryBuilder) {
            return elasticClient
                    .prepareSearch(index)
                    .setTypes(type)
                    .suggest(new SuggestBuilder().addSuggestion(type,
completionSuggestionBuilder))
                    .setPostFilter(queryBuilder).get();
        }

completionSuggestionBuilder基于 suggestions 字段，而 queryBuilder 是boolQuery：

    QueryBuilder queryBuilder = QueryBuilders.boolQuery()
.must(QueryBuilders.matchQuery("someFeature", false));

，但条件 someFeature = false 被忽略。响应包含具有 someFeature = true 的元素。 我尝试使用setQuery代替setPostFilter，但是它也不起作用。 可以和其他查询一起建议吗？我在CompletionSuggestionBuilder中找不到任何选项来过滤 someFeature 字段中具有错误值的文档。