{
  "name": "select with unspecified attribute",
  "nodes": [
    {
      "attributes": [
        {
          "key": "ID",
          "value": "1"
        },
        {
          "key": "Country",
          "value": "RU"
        },
        {
          "key": "City",
          "value": "St.Petersburg"
        },
        {
          "key": "SSD",
          "value": "0"
        }
      ]
    },
    {
      "attributes": [
        {
          "key": "ID",
          "value": "2"
        },
        {
          "key": "Country",
          "value": "RU"
        },
        {
          "key": "City",
          "value": "St.Petersburg"
        },
        {
          "key": "SSD",
          "value": "1"
        }
      ]
    },
    {
      "attributes": [
        {
          "key": "ID",
          "value": "3"
        },
        {
          "key": "Country",
          "value": "RU"
        },
        {
          "key": "City",
          "value": "Moscow"
        },
        {
          "key": "SSD",
          "value": "1"
        }
      ]
    },
    {
      "attributes": [
        {
          "key": "ID",
          "value": "4"
        },
        {
          "key": "Country",
          "value": "RU"
        },
        {
          "key": "City",
          "value": "Moscow"
        },
        {
          "key": "SSD",
          "value": "1"
        }
      ]
    }
  ],
  "tests": {
    "test": {
      "policy": {
        "replicas": [
          {
            "count": 1,
            "selector": "X"
          }
        ],
        "containerBackupFactor": 1,
        "selectors": [
          {
            "name": "X",
            "count": 4,
            "clause": "DISTINCT",
            "attribute": "",
            "filter": "*"
          }
        ],
        "filters": [],
        "subnetId": null
      },
      "result": [
        [
          0,
          1,
          2,
          3
        ]
      ]
    }
  }
}