Testing ngrams for https://groups.google.com/d/msgid/elasticsearch/4bee1be0-7ee4-4667-b4f7-b51371963928%40googlegroups.com

output.json

{
  "took" : 62,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "failed" : 0
  },
  "hits" : {
    "total" : 1,
    "max_score" : 0.53148466,
    "hits" : [ {
      "_index" : "listings",
      "_type" : "homes",
      "_id" : "3",
      "_score" : 0.53148466, "_source" : { "desc": "A colonial mansion with a large yard and a pool." }
    } ]
  }
}

test.sh

curl -s -XDELETE 'localhost:9200/listings'

curl -s -XPUT 'localhost:9200/listings' -d '{
    "mappings": {
        "homes": {
            "properties": {
                "desc": {
                    "type": "string",
                    "index_analyzer": "index_ngram",
                    "search_analyzer": "search_ngram"
                }
            }
        }
    },
    "settings": {
        "analysis": {
            "filter": {
                "desc_ngram": {
                    "type": "ngram",
                    "min_gram": 3,
                    "max_gram": 8
                }
            },
            "analyzer": {
                "index_ngram": {
                    "type": "custom",
                    "tokenizer": "keyword",
                    "filter": [ "desc_ngram", "lowercase" ]
                },
                "search_ngram": {
                    "type": "custom",
                    "tokenizer": "keyword",
                    "filter": "lowercase"
                }
            }
        }
    }
}'

curl -s -XPUT 'localhost:9200/listings/homes/1' -d '{ "desc": "This is a lovely home with a large yard." }'
curl -s -XPUT 'localhost:9200/listings/homes/2' -d '{ "desc": "This large fixer-upper has a gravelly yard." }'
curl -s -XPUT 'localhost:9200/listings/homes/3?refresh' -d '{ "desc": "A colonial mansion with a large yard and a pool." }'

curl -s -XGET 'localhost:9200/listings/homes/_search?pretty=true' -d '{
   "query":{
      "bool":{
         "must":[
            {
               "match":{
                  "desc":{
                     "query":"large ya",
                     "type":"phrase"
                  }
               }
            },
            {
               "match":{
                  "desc":{
                     "query":"arge yar",
                     "type":"phrase"
                  }
               }
            },
            {
               "match":{
                  "desc":{
                     "query":"rge yard",
                     "type":"phrase"
                  }
               }
            }
         ]
      }
   }
}';