Question

我在弹性搜索中索引了文档。示例文档如下所示：

{
    "_index": "processed_tweets",
    "_type": "processed",
    "_id": "830403820580663296",
    "_score": 1,
    "_source": {
      "at": [
        "@LouisDasch"
      ],
      "original_tweet_id": "830398288352403457",
      "id_str": "830403820580663296",
      "trigrams": [
        "blessed lourdes lady",
        "lourdes lady feast",
        "lady feast day",
        "feast day wishing"
      ],
      "hashtags": [
        "#Catholic"
      ],
      "id_tweet_creator": "487735029",
      "tokens": [
        "blessed",
        "lourdes",
        "lady",
        "feast",
        "day",
        "wishing"
      ],
      "bigrams": [
        "blessed lourdes",
        "lourdes lady",
        "lady feast",
        "feast day",
        "day wishing"
      ],
      "retweeted": true
    }
  }

我想小写字段中存在的所有主题标签＆＃34; hashtags＆＃34;对于我索引的所有文件。例如我会：＆＃34; hashtags＆＃34;：[＆＃34;＃Catholic＆＃34;] - ＆gt; ＆＃34; hashtags＆＃34;：[＆＃34; #catholic＆＃34;] 将每个关键字更新为小写等价物的最佳方式（减少时间消耗）是什么（保存＆＃34;＃＆＃34;）？

Answer 1

如果您使用的是ES 5.0及更高版本，则会有一种名为＆＃34;无痛的脚本语言＆＃34;这是介绍。这可以帮助您更新字段。它的处理速度非常快。

请查看以下链接以获取更多信息。

https://www.elastic.co/guide/en/elasticsearch/reference/5.0/modules-scripting-painless.html

Elasticsearch：在索引数据上应用小写

1 个答案: