如何搜索特定字段包含一个列表中的所有项目但不包含另一个列表中的任何项目的文档？

Question

I want to get documents whose specific field contains all items from one list and does not contain any item from another list. For example:

The document may look something like this:

{
          "name" : "text",
          "number" : "1.0",
          "price" : "3.99"
}

I have a list of strings, which have to be in the field "name".

has_to_be = [element1, element2, ...]

And I have a list of strings which cannot be in the field "name".

cannot_be = [element1, element2, ...]

I want to get the documents, whose field "name" consists all strings from has_to_be and does not consist any word from cannot_be.

I tried something like this:

"query": 
{"bool": 
{"must": [
{"match": {"name": "element1"}}, 
{"match": {"name": "element2"}}
]}}

But I didn't get any hits.

I tried also this query:

GET /index_name/_search?q=name:+element1 +element2

(Additional question: How can I send such a query from python to elasticsearch?)

But I get also hits, which didn't contain all the elements (element1 or element2).

Answer 1

About your filter needs, you can do what you need with a boolean query and specify the matching operator.

I used some test documents:

POST test/_doc
{
  "elt": ["test1", "test2", "test3"]
}

POST test/_doc
{
  "elt": ["test1", "test2", "test3", "test4"]
}

POST test/_doc
{
  "elt": ["test1", "test2"]
}

And below and example query where document must contains test1 AND test2 AND test3 but NOT test 4 . So the first document will be the only one to match.

GET test/_search
{
  "query": {
    "bool": {
      "filter": [
        {
          "match": {
            "elt": {
              "query": "test1 test2 test3",
              "operator": "AND"
            }
          }
        }
      ],
      "must_not": [
        {
          "match": {
           "elt": {
              "query": "test4 test5",
              "operator": "OR"
            }
          }
        }
      ]
    }
  }
}