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JSON 结构对比可运行案例

全文检索结果：解释 hits 首部插入导致的多处差异

数组按下标逐项比较。在 hits 开头插入记录后，后续元素位置移动，会产生多处修改和一个尾部新增；这不等于多条业务记录都发生了真实字段变更。需要按 ID 配对时应先在自己的业务逻辑中处理。

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示例工作台

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运行结果
[
  {
    "op": "replace",
    "path": "/data/hits/0/documentId",
    "oldValue": "demo-search-results-1",
    "value": "demo-inserted"
  },
  {
    "op": "replace",
    "path": "/data/hits/0/title",
    "oldValue": "演示字段提取指南",
    "value": "新增演示记录"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/documentId",
    "oldValue": "demo-search-results-2",
    "value": "demo-search-results-1"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/title",
    "oldValue": "演示约束参考",
    "value": "演示字段提取指南"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/score",
    "oldValue": 62,
    "value": 85
  },
  {
    "op": "replace",
    "path": "/data/hits/1/highlighted",
    "oldValue": false,
    "value": true
  },
  {
    "op": "replace",
    "path": "/data/hits/1/documentType",
    "oldValue": "reference",
    "value": "guide"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/match/snippets/0",
    "oldValue": "规则匹配",
    "value": "字段匹配"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/match/fields/0",
    "oldValue": "body",
    "value": "title"
  },
  {
    "op": "remove",
    "path": "/data/hits/1/match/fields/1",
    "oldValue": "title"
  },
  {
    "op": "add",
    "path": "/data/hits/2",
    "value": {
      "documentId": "demo-search-results-2",
      "title": "演示约束参考",
      "score": 62,
      "highlighted": false,
      "documentType": "reference",
      "match": {
        "snippets": [
          "规则匹配"
        ],
        "fields": [
          "body",
          "title"
        ]
      }
    }
  }
]

原例已核验，可修改输入后重新运行。

⌘ / Ctrl + Enter 运行
01

场景与操作说明

全文检索结果包含文档标识、分数、类型和命中的文本片段。下面的指南与参考文档各有命中字段列表，可练习提取标题、保留结果顺序和比较评分类型；分数只在同一查询口径下解释。

score 为演示非负整数，不能当作跨查询可比较的绝对质量评分。

  1. 核对 全文检索结果 的字段层级，保留 documentId 的字符串类型。
  2. 修改一项输入并运行，观察结果中的值或路径如何变化。
  3. 载入对照样本，复现下面的变化；恢复原例会替换当前输入。
02

对照样本

对照样本交换 A 与 B。观察新增与删除的方向、修改前后值如何反转；没有差异时交换仍无差异。

查看对照输入
{
  "ok": true,
  "data": {
    "hits": [
      {
        "documentId": "demo-inserted",
        "title": "新增演示记录",
        "score": 85,
        "highlighted": true,
        "documentType": "guide",
        "match": {
          "snippets": [
            "字段匹配"
          ],
          "fields": [
            "title"
          ]
        }
      },
      {
        "documentId": "demo-search-results-1",
        "title": "演示字段提取指南",
        "score": 85,
        "highlighted": true,
        "documentType": "guide",
        "match": {
          "snippets": [
            "字段匹配"
          ],
          "fields": [
            "title"
          ]
        }
      },
      {
        "documentId": "demo-search-results-2",
        "title": "演示约束参考",
        "score": 62,
        "highlighted": false,
        "documentType": "reference",
        "match": {
          "snippets": [
            "规则匹配"
          ],
          "fields": [
            "body",
            "title"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}
{
  "ok": true,
  "data": {
    "hits": [
      {
        "documentId": "demo-search-results-1",
        "title": "演示字段提取指南",
        "score": 85,
        "highlighted": true,
        "documentType": "guide",
        "match": {
          "snippets": [
            "字段匹配"
          ],
          "fields": [
            "title"
          ]
        }
      },
      {
        "documentId": "demo-search-results-2",
        "title": "演示约束参考",
        "score": 62,
        "highlighted": false,
        "documentType": "reference",
        "match": {
          "snippets": [
            "规则匹配"
          ],
          "fields": [
            "body",
            "title"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}

对照样本的实际结果

[
  {
    "op": "replace",
    "path": "/data/hits/0/documentId",
    "oldValue": "demo-inserted",
    "value": "demo-search-results-1"
  },
  {
    "op": "replace",
    "path": "/data/hits/0/title",
    "oldValue": "新增演示记录",
    "value": "演示字段提取指南"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/documentId",
    "oldValue": "demo-search-results-1",
    "value": "demo-search-results-2"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/title",
    "oldValue": "演示字段提取指南",
    "value": "演示约束参考"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/score",
    "oldValue": 85,
    "value": 62
  },
  {
    "op": "replace",
    "path": "/data/hits/1/highlighted",
    "oldValue": true,
    "value": false
  },
  {
    "op": "replace",
    "path": "/data/hits/1/documentType",
    "oldValue": "guide",
    "value": "reference"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/match/snippets/0",
    "oldValue": "字段匹配",
    "value": "规则匹配"
  },
  {
    "op": "replace",
    "path": "/data/hits/1/match/fields/0",
    "oldValue": "title",
    "value": "body"
  },
  {
    "op": "add",
    "path": "/data/hits/1/match/fields/1",
    "value": "title"
  },
  {
    "op": "remove",
    "path": "/data/hits/2",
    "oldValue": {
      "documentId": "demo-search-results-2",
      "title": "演示约束参考",
      "score": 62,
      "highlighted": false,
      "documentType": "reference",
      "match": {
        "snippets": [
          "规则匹配"
        ],
        "fields": [
          "body",
          "title"
        ]
      }
    }
  }
]