{
  "columns": [
    "invoiceId",
    "invoiceDate",
    "billingCountry",
    "invoiceAmount"
  ],
  "slice": [
    {
      "field": "invoiceDate",
      "op": "[)",
      "value": [
        "2012-01-01",
        "2013-01-01"
      ]
    },
    {
      "field": "billingCountry",
      "op": "=",
      "value": "USA"
    }
  ],
  "orderBy": [
    "invoiceId"
  ],
  "limit": 100
}