DELETE index/type/id now implicitly creates
type with a default
mapping if it did not exist yet.
Previously it was possible to execute
GET /_aliases,_mappings or
/myindex/_settings,_alias by separating mulitple types of requests with commas
in order to retrieve multiple types of information about one or more indices.
This comma-separation for retrieving multiple pieces of information has been
GET /_all can be used to retrieve all aliases, settings, and
mappings for all indices. In order to retrieve only the mappings for an index,
GET /myindex/_mappings (or