Elasticsearch 1.x添加时间戳的字段副本 [英] Elasticsearch 1.x add field copy of timestamp

问题描述

我正在ES 1.5.2工作。我有一个带有文档的索引，带有存储的时间戳值。我想给它添加一个常规字段，它将假定该文档的_timestamp字段的值。我该怎么做？我可以做

  PUT twitter / _mapping / new_timestamp 
 {
properties：{
name：{
type：float
} 
} 
} 
  

创建一个常规字段，但如何复制所有_timestamp值呢？

解决方案

在ES 1.5.2中，您可以使用按查询插件更新为了重新索引您的文档，并将 _timestamp 字段复制到常规字段。

安装插件后，以下命令：

  bin / plugin -url http://oss.sonatype.org/content/repositories/releases/com /yakaz/elasticsearch/plugins/elasticsearch-action-updatebyquery/1.0.0/elasticsearch-action-updatebyquery-1.0.0.zip install elasticsearch-action-updatebyquery 
  

并确保 elasticsearch.yml中启用了动态脚本启用的www.elastic.co/guide/en/elasticsearch/reference/1.5/modules-scripting.html#_enabling_dynamic_scriptingrel =nofollow noreferrer 配置文件，您将能够运行以下命令

  POST / twitter / _update_by_query 
 {
script：{
inline：ctx._source.new_timestamp = ctx._timestamp
}，
query：{
match_all：{} 
} 
} 
  

I am working in ES 1.5.2. I have an index with documents, with stored timestamp values. I want to add a regular field to it, which will assume the value of the _timestamp field for that document. How can I do this? I could do

PUT twitter/_mapping/new_timestamp
{
  "properties": {
    "name": {
      "type": "float"
    }
  }
}

to create a regular field, but how can I copy over all the _timestamp values to it?

解决方案

In ES 1.5.2, you can use the update by query plugin in order to reindex your documents and copy the _timestamp field to a regular field.

After installing the plugin with the following command:

bin/plugin -url http://oss.sonatype.org/content/repositories/releases/com/yakaz/elasticsearch/plugins/elasticsearch-action-updatebyquery/1.0.0/elasticsearch-action-updatebyquery-1.0.0.zip install elasticsearch-action-updatebyquery

And making sure that dynamic scripting is enabled in your elasticsearch.yml configuration file, you'll be able to run the following command

POST /twitter/_update_by_query
{
  "script": {
    "inline": "ctx._source.new_timestamp = ctx._timestamp"
  },
  "query": {
    "match_all": {}
  }
}

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