Introduction and usage of Scripting script
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Brief introduction
Official version 7.9: https://www.elastic.co/guide/en/elasticsearch/reference/7.9/modules-scripting.html
This is done through ES scripts, which allow users to evaluate custom expressions in certain API.
1. ES Scripting History
Version
Use script
< Elasticsearch 1.4 MVEL 脚本 < Elasticsearch 5.0 Groovy 脚本 '>
