fix: enhance default search query generation

config/elasticsearch.ts

@@ -20,6 +20,14 @@ const config: ElasticsearchConfigFile = {
     database: {
       name: 'elasticsearch',
       version: '5.6',
+      query: {
+        minMatch: '75%',
+        queryType: 'dis_max',
+        matchBoosting: 1.3,
+        fuzziness: 'AUTO',
+        cutoffFrequency: 0.0,
+        tieBreaker: 0,
+      },
     },
   },
 };

src/storage/elasticsearch/common.ts

@@ -135,7 +135,7 @@ export interface ElasticsearchQueryDisMaxConfig {
    * The maximum allowed Levenshtein Edit Distance (or number of edits)
    * @see https://www.elastic.co/guide/en/elasticsearch/reference/5.6/common-options.html#fuzziness
    */
-  fuzziness: number;
+  fuzziness: number | string;
 
   /**
    * Increase the importance (relevance score) of a field

src/storage/elasticsearch/query.ts

@@ -347,7 +347,7 @@ export function buildQuery(
               query_string: {
                 analyzer: 'search_german',
                 default_field: 'name',
-                minimum_should_match: elasticsearchConfig.query.fuzziness,
+                minimum_should_match: elasticsearchConfig.query.minMatch,
                 query: (typeof params.query !== 'string') ? '*' : escapeESReservedCharacters(params.query),
               },
             },