[
  {
    "IndexName": "_add_time",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "_add_time",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": false
    }
  },
  {
    "IndexName": "out_trade_no",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "out_trade_no",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": true
    }
  },
  {
    "IndexName": "user_order_success",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "user_order_success",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": false
    }
  },
  {
    "IndexName": "transaction_id",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "transaction_id",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": false
    }
  },
  {
    "IndexName": "total_fee",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "total_fee",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": false
    }
  },
  {
    "IndexName": "pid",
    "MgoKeySchema": {
      "MgoIndexKeys": [
        {
          "Name": "pid",
          "Direction": "1"
        }
      ],
      "MgoIsUnique": false
    }
  }
]