add changelog and api test

rest-api-spec/src/main/resources/rest-api-spec/test/search/350_matched_queries.yml

@@ -0,0 +1,53 @@
+---
+"matched queries":
+  - skip:
+    version: " - 2.12.0"
+    reason: "implemented for versions post 2.12.0"
+
+  - do:
+      indices.create:
+        index: test
+
+  - do:
+      bulk:
+        refresh: true
+        body:
+          - '{ "index" : { "_index" : "test_1", "_id" : "1" } }'
+          - '{"field" : 1 }'
+          - '{ "index" : { "_index" : "test_1", "_id" : "2" } }'
+          - '{"field" : [1, 2] }'
+
+  - do:
+      search:
+        index: test_1
+        body:
+          query:
+            bool: {
+              should: [
+                {
+                  match: {
+                    field: {
+                      query: 1,
+                      _name: match_field_1
+                    }
+                  }
+                },
+                {
+                  match: {
+                    field: {
+                      query: 2,
+                      _name: match_field_2,
+                      boost: 10
+                    }
+                  }
+                }
+              ]
+            }
+
+  - match: { hits.total.value: 2 }
+  - length: { hits.hits.0.matched_queries: 2 }
+  - match: { hits.hits.0.matched_queries: [ "match_field_1", "match_field_2" ] }
+  - length: { hits.hits.1.matched_queries: 1 }
+  - match: { hits.hits.1.matched_queries: [ "match_field_1" ] }
+
+