{
  "fields" : [
    "field1", "field2", "field3", "field4", "field5"
  ],
  "index_constraints": {
    "field2": {
      "max_value" : {
        "gte": 9
      }
    },
    "field3": {
      "min_value" : {
        "gt": 5
      }
    },
    "field4": {
      "min_value" : {
        "gte": "a"
      },
      "max_value" : {
        "lte": "g"
      }
    },
    "field5": {
      "min_value" : {
        "gt": 2
      },
      "max_value" : {
        "lt": 9
      }
    },
    "field1": {
      "min_value" : {
        "gte": "2014-01-01",
        "format" : "date_optional_time"
      },
      "max_value" : {
        "lt": "2015-01-01",
        "format" : "date_optional_time"
      }
    }
  }
}