terms query boost

diff.patch

diff --git a/sibyl/assets/esconf/autocomplete_mapping.json b/sibyl/assets/esconf/autocomplete_mapping.json
index b98efeb73..ff10abd7b 100644
--- a/sibyl/assets/esconf/autocomplete_mapping.json
+++ b/sibyl/assets/esconf/autocomplete_mapping.json
@@ -5,6 +5,9 @@
             "analyzer": "autocomplete",
             "search_analyzer": "autocomplete_search"
         },
+        "exact": {
+            "type": "keyword"
+        },
         "gain": {
             "type": "float"
         },
diff --git a/sibyl/internal/admin/index/acbuilder.go b/sibyl/internal/admin/index/acbuilder.go
index 31bebb8b4..73f4d1077 100644
--- a/sibyl/internal/admin/index/acbuilder.go
+++ b/sibyl/internal/admin/index/acbuilder.go
@@ -197,11 +197,11 @@ func (ia *IndexAdmin) buildAutocompleteIndex() {
 	var b bytes.Buffer
 	const bulkSize = 1000
 	const docTmpl = `{"index": {"_index": "autocomplete", "_id":%q } }
-{"entry":%q,"gain":1.0,"type":"%s", "id":%q}
+{"entry":%q,"exact":%q,"gain":1.0,"type":"%s", "id":%q}
 `
 	i := 0
 	for id, e := range entries {
-		b.WriteString(fmt.Sprintf(docTmpl, id, e.Entry, e.Type, e.ID))
+		b.WriteString(fmt.Sprintf(docTmpl, id, e.Entry, e.Entry, e.Type, e.ID))
 		i++
 		if i == bulkSize || i == len(entries)-1 {
 			req, err := http.NewRequest(http.MethodPost, elastic+"/_bulk", &b)
diff --git a/sibyl/internal/search/autocomplete/autocomplete.go b/sibyl/internal/search/autocomplete/autocomplete.go
index 1df96f0b3..7c0153811 100644
--- a/sibyl/internal/search/autocomplete/autocomplete.go
+++ b/sibyl/internal/search/autocomplete/autocomplete.go
@@ -50,15 +50,23 @@ func (c Client) Search(q string, size int, fuzziness bool) ([]hitDoc, error) {
 
 	matchQ := elastic.NewMultiMatchQuery(q, "entry", "entry._2gram", "entry._3gram").
 		Type("bool_prefix").
-		MinimumShouldMatch("2<75%")
+		MinimumShouldMatch("2<75%").
+		Boost(1)
 
 	if fuzziness {
 		matchQ = matchQ.Fuzziness("AUTO")
 	}
 
-	query := elastic.NewFunctionScoreQuery().
+	matchQExact := elastic.NewTermQuery("exact.keyword", q).
+		Boost(100)
+
+	query := elastic.NewBoolQuery().Should(matchQExact, matchQ)
+
+	/*
+		query := elastic.NewFunctionScoreQuery().
 		Query(matchQ).
 		AddScoreFunc(elastic.NewFieldValueFactorFunction().Factor(2).Field("gain"))
+	*/
 
 	fetchContext := elastic.NewFetchSourceContext(true).Include("entry", "type", "id")
 	search := c.esClient.