[ES 공식문서] norms

관련: .mapping 파일
참고: https://www.elastic.co/guide/en/elasticsearch/reference/current/norms.html

Norms store various normalization factors
ㄴ used at query time
ㄴ to compute the score
ㄴ require quite a lot of disk

As a consequence, if you don’t need scoring on a specific field,
you should disable norms on that field.
ㄴ used for filtering or aggregations.

PUT my-index-000001/_mapping
{
  "properties": {
    "title": {
      "type": "text",
      "norms": false
    }
  }
}