title: Configure an Elasticsearch mapping to match stemmed terms as well as unstemmed terms
body: <p>I am trying to setup stemming in my ES mapping. I pass the name of the stemming analyzer through the indexed document (de_analyzer)</p>
  
  <p>I observe that the below mapping properly adds the stemmed terms to the index, but now I can no longer search for the unstemmed terms. No matches are returned. It seems that only the stemmed terms are indexed?</p>
  
  <p>This is the index configuration showing the filter, index analyzer, search analyzer and field configuration.</p>
  
  <p>What am I overseeing?</p>
  
  <p>Thanks!</p>
  
  <pre><code>{
      "globalfashionmonitor": {
          "template": "myindex*",
          "settings": {
              "index.number_of_shards": 5,
              "default_search": "analyzer_search",
              "analysis": {
                  "filter": {
                      "de_stem_filter": {
                          "type": "stemmer",
                          "name": "minimal_german"
                      }
                  }
              },
              "analyzer": {
                  "analyzer_search": {
                      "type": "custom",
                      "tokenizer": "icu_tokenizer",
                      "filter": [
                          "icu_folding"
                      ]
                  },
                  "de_analyzer": {
                      "type": "custom",
                      "filter": [
                          "icu_normalizer",
                          "de_stop_filter",
                          "de_stem_filter",
                          "icu_folding"
                      ],
                      "tokenizer": "icu_tokenizer"
                  }
              },
              "mappings": {
                  "items": {
                      "_analyzer": {
                          "path": "use_analyzer"
                      },
                      "properties": {
                          "summarizedArticle": {
                              "fields": {
                                  "stemmed": {
                                      "index_analyzer": "de_analyzer",
                                      "type": "string",
                                      "index": "analyzed"
                                  }
                              },
                              "type": "string"
                          }
                      }
                  }
              }
          }
      }
  }
  </code></pre>