我的文档示例如下：

[
  {
    "paperType": "a4",
    "paperName": "copierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "red"
      },
      {
        "fieldName": "paperThickness",
        "double": 90.0
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "copierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "red"
      },
      {
        "fieldName": "paperThickness",
        "double": 89.9
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "bestcopierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "white"
      },
      {
        "fieldName": "paperThickness",
        "double": 90.2
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "bestcopierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "white"
      },
      {
        "fieldName": "paperThickness",
        "double": 90.1
      }
    ]
  }
]

我的Map如下：

{
  "mappings": {
    "properties": {
      "details": {
        "type": "nested",
        "properties": {
          "fieldName": {
            "type": "keyword"
          },
          "textVal": {
            "type": "text"
          },
          "doubleVal": {
            "type": "double"
          }
        },
        "paperName": {
          "type": "keyword"
        },
        "paperType": {
          "type": "keyword"
        }
      }
    }
  }
}

我想检索文档，使得details字段只包含一些对，如fieldName-text，而不包含fieldName-double。示例响应：

[
  {
    "paperType": "a4",
    "paperName": "copierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "red"
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "copierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "red"
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "bestcopierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "textVal": "white"
      }
    ]
  },
  {
    "paperType": "a4",
    "paperName": "bestcopierbond",
    "details": [
      {
        "fieldName": "paperColor",
        "text": "white"
      }
    ]
  }
]

我检查了嵌套字段的文档，但找不到在查询中省略特定字段的方法。