Elasticsearch 建议条件检查

Question

下面是我的数据库数据。

{ 
"_id" : ObjectId("572c957244ae959c6517bcb2"), 
"name":"first",
"rating" : 2.0, 
"private" : "true"
}
{ 
 "_id" : ObjectId("572c957244ss959c6517bcb2"), 
"name":"first",
"rating" : 2.0, 
"private" : "false"
}
{ 
"_id" : ObjectId("572c9dfef44ae959c6517bcb2"), 
"name":"first",
"rating" : 2.0, 
"private" : "false"
}
{ 
"_id" : ObjectId("572c9dfef44ae959c6517bcb2"), 
"name":"first",
"rating" : 2.0, 
}

我需要在我的elasticsearch中获取“private”以外的：“true”（即包括没有私有文件的json对象）。我要获取的elasticsearch查询如下

curl -XGET 'localhost:9200/tellofy/_suggest?pretty' -d '
{"brand-suggest":  {"completion":"field":"nameSuggest","size":"5"},   "text":"first"}}'

我需要获取名称以及私有“false”并且没有该字段。

Answer 1

也许你可以试试这个：

curl -XGET 'localhost:9200/tellofy/_suggest?pretty' -d '
{
   "brand-suggest": {
      "completion": {
         "field": "nameSuggest",
         "size": "5",
         "context": {
            "private": "false"
         }
      },
      "text": "first"
   }
}'

我认为您还必须为映射中的私有字段设置默认值“false”：

curl -X PUT "http://localhost:9200/tellofy/test/_mapping" -d'
{
   "test": {
      "properties": {
         "name": {
            "type": "string"
         },
         "rating": {
            "type": "float"
         },
         "private": {
            "type": "boolean"
         },
         "nameSuggest": {
            "type": "completion",
            "context": {
               "private": {
                  "type": "category",
                  "path": "private",
                  "default": false
               }
            }
         }
      }
   }
}'

不过，我自己并没有在 elasticsearch 中使用上下文建议器。请参阅Elasticsearch Context Suggester documentation 了解更多信息。

另请参阅此问题：Elasticsearch context suggester, bool on contexts