Learning Elastic Stack 6.0

Creating type mapping in an existing index

A type can be added within an index after the index is created. The mappings for the type can be specified as follows:

PUT /catalog/_mapping/category{  "properties": {    "name": {      "type": "text"    }  }}

This command creates a type called category, with one field of the text type in the existing index catalog. Let us add a couple of documents after creating the new type:

POST /catalog/category{  "name": "books"}POST /catalog/category{  "name": "phones"}

After a few documents are indexed, you realize that you need to add fields for storing the description of the category. Elasticsearch will assign a type automatically based on the value that you insert for the new field. It takes into consideration only the ...