在简单Vega数据表中排序字段(日期)

{
  "data": {
    "values": [
      {"date": "2022-01-01", "value": 10},
      {"date": "2022-01-02", "value": 20},
      {"date": "2022-01-03", "value": 15},
      {"date": "2022-01-04", "value": 25}
    ]
  },
  "mark": "table",
  "encoding": {
    "columns": [
      {"field": "date", "type": "temporal"},
      {"field": "value", "type": "quantitative"}
    ],
    "sort": {"field": "date", "order": "ascending"}
  }
}