Keep FTS indexes up to date. Only search through rooms currently joined

synapse/storage/events.py

@@ -307,6 +307,8 @@ class EventsStore(SQLBaseStore):
                 self._store_room_name_txn(txn, event)
             elif event.type == EventTypes.Topic:
                 self._store_room_topic_txn(txn, event)
+            elif event.type == EventTypes.Message:
+                self._store_room_message_txn(txn, event)
             elif event.type == EventTypes.Redaction:
                 self._store_redaction(txn, event)
 

synapse/storage/room.py

@@ -175,6 +175,10 @@ class RoomStore(SQLBaseStore):
                 },
             )
 
+            self._store_event_search_txn(
+                txn, event, "content.topic", event.content["topic"]
+            )
+
     def _store_room_name_txn(self, txn, event):
         if hasattr(event, "content") and "name" in event.content:
             self._simple_insert_txn(
@@ -187,6 +191,24 @@ class RoomStore(SQLBaseStore):
                 }
             )
 
+            self._store_event_search_txn(
+                txn, event, "content.name", event.content["name"]
+            )
+
+    def _store_room_message_txn(self, txn, event):
+        if hasattr(event, "content") and "body" in event.content:
+            self._store_event_search_txn(
+                txn, event, "content.body", event.content["body"]
+            )
+
+    def _store_event_search_txn(self, txn, event, key, value):
+        sql = (
+            "INSERT INTO event_search (event_id, room_id, key, vector)"
+            " VALUES (?,?,?,to_tsvector('english', ?))"
+        )
+
+        txn.execute(sql, (event.event_id, event.room_id, key, value,))
+
     @cachedInlineCallbacks()
     def get_room_name_and_aliases(self, room_id):
         def f(txn):

synapse/storage/schema/delta/24/fts.py

@@ -44,7 +44,8 @@ INSERT INTO event_search SELECT
     FROM events NATURAL JOIN event_json WHERE type = 'm.room.topic';
 
 
-CREATE INDEX event_search_idx ON event_search USING gin(vector);
+CREATE INDEX event_search_fts_idx ON event_search USING gin(vector);
+CREATE INDEX event_search_ev_idx ON event_search(event_id);
 """
 
 

synapse/storage/search.py

@@ -21,11 +21,16 @@ from synapse.api.constants import KnownRoomEventKeys, SearchConstraintTypes
 
 class SearchStore(SQLBaseStore):
     @defer.inlineCallbacks
-    def search_msgs(self, constraints):
+    def search_msgs(self, room_ids, constraints):
         clauses = []
         args = []
         fts = None
 
+        clauses.append(
+            "room_id IN (%s)" % (",".join(["?"] * len(room_ids)),)
+        )
+        args.extend(room_ids)
+
         for c in constraints:
             local_clauses = []
             if c.search_type == SearchConstraintTypes.FTS: