如何根据ElasticSearch中父文档的值更新子文档中的值

Question

我正在尝试更新子文档并将其添加到父文档中值存在的新字段。 elasticsearch npm lib完成的所有操作。查询如下：

var elasticsearch = require('elasticsearch');
var client = new elasticsearch.Client({
  host: 'localhost:9200',
  // log: 'trace'
});

const getAllChatsQuery = {

  scroll: '10s',

  body: {
    query: {
      has_parent: {
        parent_type: "chat",
        query: {
          match_all: {}
        },
        inner_hits: {
        }
      }
    }
  }
};

let allRecords = []
function f() {
  try {
    client.search(
      getAllChatsQuery, function fetchResults(err, results) {
        console.log(results)
      for (let chat of results.hits.hits) {
        for (let msg of chat.inner_hits.chat.hits.hits){
          console.log(msg)
        }
        console.log(chat.inner_hits.chat.hits.hits)
        console.log(chat)
       allRecords.push(chat)
      }
      if (results.hits.total !== allRecords.length) {
        client.scroll({
          scrollId: results._scroll_id,
          scroll: '10s'
        }, fetchResults);
      } else {
        // console.log('all done', allRecords);
        console.log('all done', allRecords.length);
      }
    });

  } catch (error) {
    console.trace(error.message)
  }
}
f()

现在我想知道是否可以使用一个查询将parent._source.service复制到child._source中？或者我必须运行与搜索查询分开的更新查询 谢谢

现在我的主要问题是可以选择更新