elasticsearch - ElasticSearch只能添加字段索引，而不能像lucene Field.Store.NO一样保存原始值

Question

我在MySQL中有一个很大的字段，并且不想将原始值保存到ElasticSearch。有没有像Lucene Field.Store.NO一样的方法？
谢谢。

Answer 1

您只需要相应地定义“store”映射，例如。 :

PUT your-index
{
  "mappings": {
    "properties": {
      "some_field": {
        "type": "text",
        "index": true,
        "store": false
      }
    }
  }
}

您可能还想禁用_source字段:

#disable-source-field
The _source field contains the original JSON document body that was passed at index time [...] Though very handy to have around, the source field does incur storage overhead within the index.

因此，可以如下禁用它:

PUT your-index
{
  "mappings": {
   "_source": {
      "enabled": false
    }
  }
}