Terms Aggregation

• Recall first aggregation query:

  curl -XPOST 'localhost:9200/orders/orders/_search?pretty=true' \
  -H 'content-type: application/json' \
  -d '
  {
  "size": 0, 
  "aggregations": {
    "order-status": {
      "terms": {
        "field": "status.keyword"
      }
    }
  }
  }'

• size": 0 - suppress raw query results to return aggregations only

• "aggregations" or "aggs" - part of ElasticSearch Dsl

• "order-status" - an arbitrary name for aggregation

• "terms" - type of aggregation to use

• Why the field is "status.keyword" rather than "status"?