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-rw-r--r--synapse/storage/__init__.py59
-rw-r--r--synapse/storage/roommember.py4
-rw-r--r--synapse/storage/schema/delta/v8.sql34
-rw-r--r--synapse/storage/schema/event_signatures.sql2
-rw-r--r--synapse/storage/state.py2
-rw-r--r--synapse/storage/stream.py2
6 files changed, 83 insertions, 20 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index f6811a8117..e4bdad98bb 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -69,7 +69,7 @@ SCHEMAS = [
 
 # Remember to update this number every time an incompatible change is made to
 # database schema files, so the users will be informed on server restarts.
-SCHEMA_VERSION = 7
+SCHEMA_VERSION = 8
 
 
 class _RollbackButIsFineException(Exception):
@@ -97,7 +97,8 @@ class DataStore(RoomMemberStore, RoomStore,
 
     @defer.inlineCallbacks
     @log_function
-    def persist_event(self, event, backfilled=False, is_new_state=True):
+    def persist_event(self, event, backfilled=False, is_new_state=True,
+                      current_state=None):
         stream_ordering = None
         if backfilled:
             if not self.min_token_deferred.called:
@@ -113,6 +114,7 @@ class DataStore(RoomMemberStore, RoomStore,
                 backfilled=backfilled,
                 stream_ordering=stream_ordering,
                 is_new_state=is_new_state,
+                current_state=current_state,
             )
         except _RollbackButIsFineException:
             pass
@@ -141,7 +143,7 @@ class DataStore(RoomMemberStore, RoomStore,
 
     @log_function
     def _persist_event_txn(self, txn, event, backfilled, stream_ordering=None,
-                           is_new_state=True):
+                           is_new_state=True, current_state=None):
         if event.type == RoomMemberEvent.TYPE:
             self._store_room_member_txn(txn, event)
         elif event.type == FeedbackEvent.TYPE:
@@ -210,8 +212,27 @@ class DataStore(RoomMemberStore, RoomStore,
 
         self._store_state_groups_txn(txn, event)
 
+        if current_state:
+            txn.execute(
+                "DELETE FROM current_state_events WHERE room_id = ?",
+                (event.room_id,)
+            )
+
+            for s in current_state:
+                self._simple_insert_txn(
+                    txn,
+                    "current_state_events",
+                    {
+                        "event_id": s.event_id,
+                        "room_id": s.room_id,
+                        "type": s.type,
+                        "state_key": s.state_key,
+                    },
+                    or_replace=True,
+                )
+
         is_state = hasattr(event, "state_key") and event.state_key is not None
-        if is_new_state and is_state:
+        if is_state:
             vals = {
                 "event_id": event.event_id,
                 "room_id": event.room_id,
@@ -229,17 +250,18 @@ class DataStore(RoomMemberStore, RoomStore,
                 or_replace=True,
             )
 
-            self._simple_insert_txn(
-                txn,
-                "current_state_events",
-                {
-                    "event_id": event.event_id,
-                    "room_id": event.room_id,
-                    "type": event.type,
-                    "state_key": event.state_key,
-                },
-                or_replace=True,
-            )
+            if is_new_state:
+                self._simple_insert_txn(
+                    txn,
+                    "current_state_events",
+                    {
+                        "event_id": event.event_id,
+                        "room_id": event.room_id,
+                        "type": event.type,
+                        "state_key": event.state_key,
+                    },
+                    or_replace=True,
+                )
 
             for e_id, h in event.prev_state:
                 self._simple_insert_txn(
@@ -316,7 +338,12 @@ class DataStore(RoomMemberStore, RoomStore,
             txn, event.event_id, ref_alg, ref_hash_bytes
         )
 
-        self._update_min_depth_for_room_txn(txn, event.room_id, event.depth)
+        if not outlier:
+            self._update_min_depth_for_room_txn(
+                txn,
+                event.room_id,
+                event.depth
+            )
 
     def _store_redaction(self, txn, event):
         txn.execute(
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index c37df59d45..05b275663e 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -218,7 +218,9 @@ class RoomMemberStore(SQLBaseStore):
             "ON m.event_id = c.event_id "
             "WHERE m.membership = 'join' "
             "AND (%(clause)s) "
-            "GROUP BY m.room_id HAVING COUNT(m.room_id) = ?"
+            # TODO(paul): We've got duplicate rows in the database somewhere
+            #   so we have to DISTINCT m.user_id here
+            "GROUP BY m.room_id HAVING COUNT(DISTINCT m.user_id) = ?"
         ) % {"clause": user_list_clause}
 
         args = list(user_id_list)
diff --git a/synapse/storage/schema/delta/v8.sql b/synapse/storage/schema/delta/v8.sql
new file mode 100644
index 0000000000..daf6646ed5
--- /dev/null
+++ b/synapse/storage/schema/delta/v8.sql
@@ -0,0 +1,34 @@
+/* Copyright 2014 OpenMarket Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ CREATE TABLE IF NOT EXISTS event_signatures_2 (
+    event_id TEXT,
+    signature_name TEXT,
+    key_id TEXT,
+    signature BLOB,
+    CONSTRAINT uniqueness UNIQUE (event_id, signature_name, key_id)
+);
+
+INSERT INTO event_signatures_2 (event_id, signature_name, key_id, signature)
+SELECT event_id, signature_name, key_id, signature FROM event_signatures;
+
+DROP TABLE event_signatures;
+ALTER TABLE event_signatures_2 RENAME TO event_signatures;
+
+CREATE INDEX IF NOT EXISTS event_signatures_id ON event_signatures (
+    event_id
+);
+
+PRAGMA user_version = 8;
\ No newline at end of file
diff --git a/synapse/storage/schema/event_signatures.sql b/synapse/storage/schema/event_signatures.sql
index 4efa8a3e63..b6b56b47a2 100644
--- a/synapse/storage/schema/event_signatures.sql
+++ b/synapse/storage/schema/event_signatures.sql
@@ -42,7 +42,7 @@ CREATE TABLE IF NOT EXISTS event_signatures (
     signature_name TEXT,
     key_id TEXT,
     signature BLOB,
-    CONSTRAINT uniqueness UNIQUE (event_id, key_id)
+    CONSTRAINT uniqueness UNIQUE (event_id, signature_name, key_id)
 );
 
 CREATE INDEX IF NOT EXISTS event_signatures_id ON event_signatures (
diff --git a/synapse/storage/state.py b/synapse/storage/state.py
index 55ea567793..e0f44b3e59 100644
--- a/synapse/storage/state.py
+++ b/synapse/storage/state.py
@@ -87,7 +87,7 @@ class StateStore(SQLBaseStore):
         )
 
     def _store_state_groups_txn(self, txn, event):
-        if not event.state_events:
+        if event.state_events is None:
             return
 
         state_group = event.state_group
diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py
index b84735e61c..3405cb365e 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -283,7 +283,7 @@ class StreamStore(SQLBaseStore):
 
         sql = (
             "SELECT *, (%(redacted)s) AS redacted FROM events "
-            "WHERE room_id = ? AND stream_ordering <= ? "
+            "WHERE room_id = ? AND stream_ordering <= ? AND outlier = 0 "
             "ORDER BY topological_ordering DESC, stream_ordering DESC LIMIT ? "
         ) % {
             "redacted": del_sql,