_type field

Deprecated in 6.0.0.

See Removal of mapping types

Each document indexed is associated with a _type and an _id. The _type field is indexed in order to make searching by type name fast.

The value of the _type field is accessible in queries, aggregations, scripts, and when sorting:

  1. # Example documents
  3. PUT my-index-000001/_doc/1?refresh=true
  4. {
  5.   "text": "Document with type 'doc'"
  6. }
  8. GET my-index-000001/_search
  9. {
  10.   "query": {
  11.     "term": {
  12.       "_type": "_doc"  
  13.     }
  14.   },
  15.   "aggs": {
  16.     "types": {
  17.       "terms": {
  18.         "field": "_type", 
  19.         "size": 10
  20.       }
  21.     }
  22.   },
  23.   "sort": [
  24.     {
  25.       "_type": { 
  26.         "order": "desc"
  27.       }
  28.     }
  29.   ],
  30.   "script_fields": {
  31.     "type": {
  32.       "script": {
  33.         "lang": "painless",
  34.         "source": "doc['_type']" 
  35.       }
  36.     }
  37.   }
  38. }

Querying on the _type field

Aggregating on the _type field

Sorting on the _type field

Accessing the _type field in scripts