Elasticsearch7学习笔记之_doc类型被取消 _elasticSearch

智者不为愚者谋，勇者不为怯者死。这篇文章主要讲述Elasticsearch7学习笔记之_doc类型被取消相关的知识，希望能为你提供帮助。
ES7 _doc报错
0x00 概述在使用ES7设置mapping的时候，发现报错如下：

The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true

0x00 问题复现

PUT my_index

"settings":
"analysis":
"char_filter":
"my_char_filter":
"type": "mapping",
"mappings": [
", => "
]

,
"filter":
"my_synonym_filter":
"type": "synonym",
"expand": true,
"synonyms": [
"lileilei => leileili",
"hanmeimei => meimeihan"
]

,
"analyzer":
"my_analyzer":
"tokenizer": "my_tokenizer",
"char_filter": [
"my_char_filter"
],
"filter": [
"my_synonym_filter"
]

,
"tokenizer":
"my_tokenizer":
"type": "pattern",
"pattern": "\\\\; "

,
"mappings":
"_doc":
"properties":
"text":
"type": "text",
"analyzer": "my_analyzer"

报错详情

"error" :
"root_cause" : [

"type" : "illegal_argument_exception",
"reason" : "The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true."

],
"type" : "illegal_argument_exception",
"reason" : "The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true."
,
"status" : 400

0x02 解决es从6跨越到7，还是有些变化的；在es7中已经在内部取消了_doc这类type；
把上面的语句中删除_doc就行了，改成如下：

PUT my_index

"settings":
"analysis":
"char_filter":
"my_char_filter":
"type": "mapping",
"mappings": [
", => "
]

,
"filter":
"my_synonym_filter":
"type": "synonym",
"expand": true,
"synonyms": [
"lileilei => leileili",
"hanmeimei => meimeihan"
]

,
"analyzer":
"my_analyzer":
"tokenizer": "my_tokenizer",
"char_filter": [
"my_char_filter"
],
"filter": [
"my_synonym_filter"
]

,
"tokenizer":
"my_tokenizer":
"type": "pattern",
"pattern": "\\\\; "

,
"mappings":

"properties":
"text":
"type": "text",
"analyzer": "my_analyzer"