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# SELECT COUNT(*) from bank GROUP BY state ORDER BY COUNT(*) DESC
curl -XPOST 'localhost:9200/bank/_search?pretty' -d '
{
  "size": 0,
  "aggs": {
    "group_by_state": {
      "terms": {
        "field": "state"
      }
    }
  }
}'


# This example demonstrates how we can group by age brackets (ages 20-29, 30-29, and 40-49), 
# then by gender, and then finally get the average account balance, per age bracket, per gender

curl -XPOST 'localhost:9200/bank/_search?pretty' -d '
{
  "size": 0,
  "aggs": {
    "group_by_state": {
      "terms": {
        "field": "state",
        "order": {
          "average_balance": "desc"
        }
      },
      "aggs": {
        "average_balance": {
          "avg": {
            "field": "balance"
          }
        }
      }
    }
  }
}'