Histograms¶

Distribution of total_amount with interval 25¶

GET /orders/_search
{
  "size": 0,
  "aggs": {
    "amount_distribution": {
      "histogram": {
        "field": "total_amount",
        "interval": 25
      }
    }
  }
}

Requiring minimum 1 document per bucket¶

GET /orders/_search
{
  "size": 0,
  "aggs": {
    "amount_distribution": {
      "histogram": {
        "field": "total_amount",
        "interval": 25,
        "min_doc_count": 1
      }
    }
  }
}

Specifying fixed bucket boundaries¶

GET /orders/_search
{
  "size": 0,
  "query": {
    "range": {
      "total_amount": {
        "gte": 100
      }
    }
  },
  "aggs": {
    "amount_distribution": {
      "histogram": {
        "field": "total_amount",
        "interval": 25,
        "min_doc_count": 0,
        "extended_bounds": {
          "min": 0,
          "max": 500
        }
      }
    }
  }
}

Aggregating by month with the date_histogram aggregation¶

GET /orders/_search
{
  "size": 0,
  "aggs": {
    "orders_over_time": {
      "date_histogram": {
        "field": "purchased_at",
        "calendar_interval": "month"
      }
    }
  }
}