Disabling field analyzing by default in elastic search

Question

Is it possible to enable indexing of elastic search fields selectively for a type?

Through the mapping settings for a specific index, one can set the property

Answer 1

From elasticsearch 5.x string type is disabled. Instead elasticsearch has introduced two types text and keyword. Read this blog for the reasons for migrating data https://www.elastic.co/blog/strings-are-dead-long-live-strings

So instead of adding a template to disable analyzer, you could simply use field.keyword for exact search. e.g. If field name is fullName, and you have entries

1. fullName:"John Doe"
2. fullName:"John"

then, fullName:"John" will return two results, while fullName.keyword:"John" will return single record.

Just in case, you still want to disable text field, you can use the below dynamic template,

PUT _template/disable_all_analyzer
   {
     "template": "*",
     "mappings": {
       "_default_": {
           "dynamic_templates": [
               { "notanalyzed": {
                     "match":              "*", 
                     "match_mapping_type": "string",
                     "mapping": {
                         "type":        "keyword"
                     }
                  }
               }
             ]
          }
      }
   }

Cheers!!!