10 query string, X field must contain (not included) XX; _all principle

1. Specify a field must contain XX characters
   GET /beauties/my/_search?q=Name:Chang Wei
    

2. The seizure of a field that does not contain XX characters of all content
   GET / beauties / my / _search q = -Name:? Ruru (search results, Name not included Ruru)
    
3. No matter which field, just contains the specified character, you can return
   GET /beauties/my/_search?q=Ruru
   Principle: Internal ES, not to see what each field is not included Ruru, but a special search field: _all.

 

 

_all principle :

ES when a record is inserted, will automatically generate a _all field, it will all

 

ES inserted in a document, it contains a plurality of field. At this time, automatically ES plurality of field values, in series with all of the character string, the character string into a long, as _all field values ​​while index

 

If you later when searching, not for a specified search field, then the default search field _all , which is containing all the values of the field

 

for example

 

{

  "name": "jack",

  "age": 26,

  "email": " [email protected]",

  "address": "guamgzhou"

}

 

"Jack 26 [email protected] establish corresponding inverted index after guangzhou", as the value of this _all field of a document, at the same time word