{
  "db_name": "MySQL",
  "query": "SELECT id FROM users WHERE id=? AND dn IS NOT NULL",
  "describe": {
    "columns": [
      {
        "ordinal": 0,
        "name": "id",
        "type_info": {
          "type": "VarString",
          "flags": "NOT_NULL | PRIMARY_KEY | NO_DEFAULT_VALUE",
          "char_set": 224,
          "max_size": 512
        }
      }
    ],
    "parameters": {
      "Right": 1
    },
    "nullable": [
      false
    ]
  },
  "hash": "12328898305c1a7e73acfcd01239c0c6dc5ac84289a2e7c6487f9817fb5f4f1c"
}