ES 中的 index template 和 Dynamic Template

template.txt

PUT ttemplate/_doc/1
{
  "someNumber": "1",
  "someDate": "2019/02/03"
}

GET ttemplate/_mapping

GET _cat/indices

# 设置索引的模板
PUT _template/template_default
{
  "index_patterns": ["*"],
  "order": 0,
  "version": 1,
  "settings": {
    "number_of_shards": 1,
    "number_of_replicas": 1
  }
}
# 开启数字检测，关闭日期检测
PUT _template/template_test
{
  "index_patterns": ["test*"],
  "order": 1,
  "settings": {
    "number_of_shards": 1,
    "number_of_replicas": 2
  },
  "mappings": {
    "date_detection": false,
    "numeric_detection": true
  }
}

GET /_template/template_default
# 可以使用通配符获取所有索引模板
GET /_template/temp*

PUT testtemplate/_doc/1
{
  "someNumber": 1,
  "someDate": "2019/01/03"
}

GET testtemplate/_mapping
GET testtemplate/_settings

PUT testmy
{
  "settings": {
    "number_of_replicas": 5
  }
}

PUT testmy/_doc/1
{
  "key": "value"
}

POST testmy/_doc
{
  "key1": "value1"
}

GET testmy/_search
GET testmy/_settings


# dynamic template
# 为索引的具体字段设置索引
PUT my_index
{
  "mappings": {
    "dynamic_templates": [
      {
        "strings_as_boolean": {
          "match_mapping_type": "string",
          "match": "is*",
          "mapping": {
            "type": "boolean"
          }
        }
      },
      {
        "strings_as_keywords": {
          "match_mapping_type": "string",
          "mapping": {
            "type": "keyword"
          }
        }
      }
    ]
  }
}

PUT my_index/_doc/1
{
  "firstName": "Ruan",
  "isVIP": "true"
}

GET my_index/_mapping

DELETE my_index

# 利用 dynamic template 新建字段
# 将name对象中除 middle 之外的所有字段都复制到 fullname 字段中
PUT my_index
{
  "mappings": {
    "dynamic_templates": [
    {
      "full_name": {
        "path_match": "name.*",
        "path_unmatch": "*.middle",
        "mapping": {
          "type": "text",
          "copy_to": "full_name"
        }
      }
    }
    ]
  }
}
  
PUT my_index/_doc/1
{
  "name": {
    "first": "John",
    "middle": "Winston",
    "last": "Lennon"
  }
}

# 可以通过 full_name 查找文档
GET my_index/_search?q=full_name:Winston
GET my_index/_search?q=full_name:Lennon

# 疑问，这个 full_name 是一个字段呢？为什么返回结果中没有它
GET my_index/_search