Adding a field with multiple mapping

Often a field must be processed with several core types or in different ways. For example, a string field must be processed tokenized for search and not-tokenized for sorting. To do this, we need to define a multifield special property fields.

The fields property is a very powerful feature of mappings because it allows you to use the same field in different ways.

Getting ready

You need an up-and-running Elasticsearch installation as we described in the Downloading and installing Elasticsearch recipe in Chapter 2, Downloading and Setup.

How to do it...

To define a multifield property, we need to define a dictionary containing the subfields called fields. The subfield with the same name of parent field is the default one.

If we consider the item of our order example, we can index the name in this way:

       "name": { 
                "type": "keyword", 
                "fields": { 
                "name": {                        
       ...