Mappings don't seem to work as expected

es_mapping_issue

curl -XPUT 'http://127.0.0.1:9200/i1/?pretty=1' -d '
{
   "settings" : {
      "analysis" : {
         "filter" : {
            "edge_ngram" : {
               "side" : "front",
               "max_gram" : 20,
               "min_gram" : 1,
               "type" : "edgeNGram"
            }
         },
         "analyzer" : {
            "ascii_ngram" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding",
                  "nGram"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            },
            "ascii_std" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            },
            "ascii_edge_ngram" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding",
                  "edge_ngram"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            }
         }
      }
   }
}
'
curl -XPUT 'http://127.0.0.1:9200/i1/website/_mapping?pretty=1' -d '
{
   "website" : {
      "properties" : {
         "uri" : {
            "type" : "string",
            "include_in_all" : 0,
            "index_analyzer" : "ascii_ngram",
            "search_analyzer" : "ascii_std"
         }
      }
   }
}
'
curl -XPOST 'http://127.0.0.1:9200/i1/website?pretty=1' -d '
{
   "uri" : "http://www.heise.de"
}
'
curl -XPOST 'http://127.0.0.1:9200/i1/_refresh'
curl -XGET 'http://127.0.0.1:9200/i1/website/_search?pretty=1' -d '
{
   "query" : {
      "field" : {
         "uri" : "heis"
      }
   }
}
'
curl -XPUT 'http://127.0.0.1:9200/i1/website2/_mapping?pretty=1' -d '
{
   "website" : {
      "properties" : {
         "uri" : {
            "type" : "string",
            "include_in_all" : 0,
            "index_analyzer" : "ascii_ngram",
            "search_analyzer" : "ascii_ngram"
         }
      }
   }
}
'
curl -XPOST 'http://127.0.0.1:9200/i1/website2?pretty=1' -d '
{
   "uri" : "http://www.heise.de"
}
'
curl -XPOST 'http://127.0.0.1:9200/i1/_refresh'
curl -XGET 'http://127.0.0.1:9200/i1/website2/_search?pretty=1' -d '
{
   "query" : {
      "field" : {
         "uri" : "heis"
      }
   }
}
'
curl -XPUT 'http://127.0.0.1:9200/i3/?pretty=1' -d '
{
   "settings" : {
      "analysis" : {
         "filter" : {
            "edge_ngram" : {
               "side" : "front",
               "max_gram" : 20,
               "min_gram" : 1,
               "type" : "edgeNGram"
            }
         },
         "analyzer" : {
            "ascii_ngram" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding",
                  "nGram"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            },
            "ascii_std" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            },
            "ascii_edge_ngram" : {
               "filter" : [
                  "standard",
                  "lowercase",
                  "asciifolding",
                  "edge_ngram"
               ],
               "type" : "custom",
               "tokenizer" : "standard"
            }
         }
      }
   }
}
'
curl -XPUT 'http://127.0.0.1:9200/i3/website/_mapping?pretty=1' -d '
{
   "website" : {
      "properties" : {
         "uri" : {
            "type" : "string",
            "include_in_all" : 0,
            "index_analyzer" : "ascii_ngram",
            "search_analyzer" : "ascii_ngram"
         }
      }
   }
}
'
curl -XPOST 'http://127.0.0.1:9200/i3/website?pretty=1' -d '
{
   "uri" : "http://www.heise.de"
}
'
curl -XPOST 'http://127.0.0.1:9200/i3/_refresh'
curl -XGET 'http://127.0.0.1:9200/i3/website/_search?pretty=1' -d '
{
   "query" : {
      "field" : {
         "uri" : "heis"
      }
   }
}
'