Word-oriented completion suggester (ElasticSearch 5.x)

Question

ElasticSearch 5.x introduced some (breaking) changes to the Suggester API (Documentation). Most notable change is the following:

Completion su

Answer 1

An additional field skip_duplicates will be added in the next release 6.x.

From the docs at https://www.elastic.co/guide/en/elasticsearch/reference/master/search-suggesters-completion.html#skip_duplicates:

POST music/_search?pretty
{
    "suggest": {
        "song-suggest" : {
            "prefix" : "nor",
            "completion" : {
                "field" : "suggest",
                "skip_duplicates": true
            }
        }
    }
}