Elasticsearch replaces string type with two new types text and keyword.

Text vs. keywordWith the release of Elasticsearch 5.0 coming closer, it is time to introduce one of the release highlights of this upcoming release: the removal of the string type. The background for this change is that we think the string type is confusing: Elasticsearch has two very different ways to search strings. You can either search whole values, that we often refer to as keyword search, or