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Elastic Docs ›Elasticsearch Plugins and Integrations [2.2] ›Mapper Plugins ›Mapper Attachments Plugin

Querying or accessing metadata

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Querying or accessing metadata

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If you need to query on metadata fields, use the attachment field name dot the metadata field. For example:

DELETE /test
PUT /test
PUT /test/person/_mapping
{
  "person": {
    "properties": {
      "file": {
        "type": "attachment",
        "fields": {
          "content_type": {
            "type": "string",
            "store": true
          }
        }
      }
    }
  }
}
PUT /test/person/1?refresh=true
{
  "file": "IkdvZCBTYXZlIHRoZSBRdWVlbiIgKGFsdGVybmF0aXZlbHkgIkdvZCBTYXZlIHRoZSBLaW5nIg=="
}
GET /test/person/_search
{
  "fields": [ "file.content_type" ],
  "query": {
    "match": {
      "file.content_type": "text plain"
    }
  }
}
Copy as curlView in Sense 

Will give you:

{
   "took": 2,
   "timed_out": false,
   "_shards": {
      "total": 5,
      "successful": 5,
      "failed": 0
   },
   "hits": {
      "total": 1,
      "max_score": 0.16273327,
      "hits": [
         {
            "_index": "test",
            "_type": "person",
            "_id": "1",
            "_score": 0.16273327,
            "fields": {
               "file.content_type": [
                  "text/plain; charset=ISO-8859-1"
               ]
            }
         }
      ]
   }
}
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