ElasticSearch查询

Question

I need to make a query in elasticsearch, such that, in the following text: "I want to go on holiday to New York with my family" find: "New York" in the field of a nested. I in my data I have a field that contains the word "New York" which is the type Nested and not_analyzed. Anyone know how to do this?

The query and I got it, and nobody help me.

Answer 1

Use a phrase query . From the docs:

{
   "match_phrase" : {
       "message" : "this is a test"
   }
}

I do think that having "not_analyzed" is going to be a problem for you, as you actually want an analyzed field. You can specify the type of analyzer to use, which may work. But I would recommend using an analyzed field, if possible.

If you are willing to pay the space cost, I would recommend using a multi field with analyzed and not_analyzed parts. here is an example:

 "sender": {
            "type" : "multi_field",
            "fields" : {
                "sender" : {"type" : "string", "index" : "analyzed"},
                "sender_not_analyzed" : {"type" : "string", "index" : "not_analyzed"}
            }
        }

Answer 2

not_analyzed means what it says, it isn't analyzed. It will be indexed as the literal string passed in, in a single token. If you make it analyzed, it will be tokenized and filtered in such a way as to make it useful for full-text searching. So do that.

Please see the documentation of ElasticSearch Analysis .