Exact search in array object type using elasticsearch

Question

I\'m looking for a way to do exact array matches in elastic search. Let\'s say these are my documents:

{\"id\": 1, \"categories\" : [\"c\", \"d\         


        

Answer 1

I found a solution for our usage case that appears to work. It relies on two filters and the knowledge of how many categories we want to match against. We make use of a terms filter and a script filter to check the size of the array. In this example, marketBasketList is similar to your categories entry.

{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "siteId": 4
          }
        },
        {
          "match": {
            "marketBasketList": {
              "query": [
                10,
                11
              ],
              "operator": "and"
            }
          }
        }
      ]
    },
    "boost": 1,
    "filter": {
      "and": {
        "filters": [
          {
            "script": {
              "script": "doc['marketBasketList'].values.length == 2"
            }
          },
          {
            "terms": {
              "marketBasketList": [
                10,
                11
              ],
              "execution": "and"
            }
          }
        ]
      }
    }
  }
}