add query syntax with `simple_query_string

Author: bodintsov

share/search/index_strategy/trovesearch_denorm.py

@@ -719,12 +719,13 @@ def _text_field_name(self, propertypath: Propertypath):
         )
 
     def _exact_text_query(self, textsegment: Textsegment) -> dict:
-        # TODO: textsegment.is_openended (prefix query)
-        return _any_query([
-            {'match_phrase': {self._text_field_name(_path): {'query': textsegment.text}}}
-            for _path in textsegment.propertypath_set
-        ])
-
+        return {
+            "simple_query_string": {
+                "query": textsegment.text,
+                "fields": [self._text_field_name(_path) for _path in textsegment.propertypath_set],
+                "default_operator": "AND"
+            }
+        }
     def _fuzzy_text_must_query(self, textsegment: Textsegment) -> dict:
         # TODO: textsegment.is_openended (prefix query)
         return _any_query([