select matching objects from array in elasticsearch

Question

{
    class: 1,
    users: [{
        name: \'abc\',
        surname: \'def\'
    }, {
        name: \'xyz\',
        surname: \'wef\'
    }, {
        name: \'abc\'         


        

Answer 1

Then if you have your users field mapped as nested type, it's a good start!

Using nested inner_hits, you can retrieve only the matching user names with a query like this one:

{
  "_source": false,
  "query": {
    "nested": {
      "path": "users",
      "inner_hits": {        <---- this is where the magic happens
        "_source": [
          "name"
        ]
      },
      "query": {
        "bool": {
          "must": [
            {
              "term": {
                "users.name": "abc"
              }
            }
          ]
        }
      }
    }
  }
}