Index=not_analyzed Vs analyser=keyword

Elastic Stack Elasticsearch
1

Since I know my data well enough, I am trying to create a mapping upfront for my index
The field type am talking is string.

Here is a snippet of the mapping I am trying

PUT my_index
{
  "mappings": {
    "emp_type": {
      "properties": {
        "name": {
          "type": "string"
         }
      }
    }
  }
}

I want to be able to query my index by the name, as is. I don't want any analysis to be performed.
For example if my name is "foo Bar", I want to be able to query only by "foo Bar".
Not sure how index=not_analyzed will be different from analyser=keyword in this case.

2

they are almost the same

http://elasticsearch-users.115913.n3.nabble.com/Help-understanding-keyword-vs-not-analyzed-td4028283.html

3

interesting...thanks.