diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 3ce1b34aea..12282a8b3d 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -66,6 +66,7 @@ class DataStore(RoomMemberStore, RoomStore,
PresenceStore, TransactionStore,
DirectoryStore, KeyStore, StateStore, SignatureStore,
ApplicationServiceStore,
+ EventsStore,
EventFederationStore,
MediaRepositoryStore,
RejectionsStore,
@@ -73,7 +74,6 @@ class DataStore(RoomMemberStore, RoomStore,
PusherStore,
PushRuleStore,
ApplicationServiceTransactionStore,
- EventsStore,
ReceiptsStore,
EndToEndKeyStore,
SearchStore,
diff --git a/synapse/storage/appservice.py b/synapse/storage/appservice.py
index 9f12b360bc..31248d5e06 100644
--- a/synapse/storage/appservice.py
+++ b/synapse/storage/appservice.py
@@ -22,7 +22,7 @@ from twisted.internet import defer
from synapse.appservice import AppServiceTransaction
from synapse.config.appservice import load_appservices
-from synapse.storage.events import EventsWorkerStore
+from synapse.storage.events_worker import EventsWorkerStore
from ._base import SQLBaseStore
diff --git a/synapse/storage/event_federation.py b/synapse/storage/event_federation.py
index 5d3ee90017..8bd35df119 100644
--- a/synapse/storage/event_federation.py
+++ b/synapse/storage/event_federation.py
@@ -25,7 +25,7 @@ from twisted.internet import defer
from synapse.api.errors import StoreError
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.storage._base import SQLBaseStore
-from synapse.storage.events import EventsWorkerStore
+from synapse.storage.events_worker import EventsWorkerStore
from synapse.storage.signatures import SignatureWorkerStore
from synapse.util.caches.descriptors import cached
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 2f482af3a1..c98e524ba1 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -34,6 +34,8 @@ from synapse.api.errors import SynapseError
from synapse.events import EventBase # noqa: F401
from synapse.events.snapshot import EventContext # noqa: F401
from synapse.metrics.background_process_metrics import run_as_background_process
+from synapse.storage.background_updates import BackgroundUpdateStore
+from synapse.storage.event_federation import EventFederationStore
from synapse.storage.events_worker import EventsWorkerStore
from synapse.types import RoomStreamToken, get_domain_from_id
from synapse.util.async import ObservableDeferred
@@ -193,7 +195,9 @@ def _retry_on_integrity_error(func):
return f
-class EventsStore(EventsWorkerStore):
+# inherits from EventFederationStore so that we can call _update_backward_extremities
+# and _handle_mult_prev_events (though arguably those could both be moved in here)
+class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore):
EVENT_ORIGIN_SERVER_TS_NAME = "event_origin_server_ts"
EVENT_FIELDS_SENDER_URL_UPDATE_NAME = "event_fields_sender_url"
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index 027bf8c85e..10dce21cea 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -24,7 +24,7 @@ from canonicaljson import json
from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership
-from synapse.storage.events import EventsWorkerStore
+from synapse.storage.events_worker import EventsWorkerStore
from synapse.types import get_domain_from_id
from synapse.util.async import Linearizer
from synapse.util.caches import intern_string
diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py
index 25d0097b58..b9f2b74ac6 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -43,7 +43,7 @@ from twisted.internet import defer
from synapse.storage._base import SQLBaseStore
from synapse.storage.engines import PostgresEngine
-from synapse.storage.events import EventsWorkerStore
+from synapse.storage.events_worker import EventsWorkerStore
from synapse.types import RoomStreamToken
from synapse.util.caches.stream_change_cache import StreamChangeCache
from synapse.util.logcontext import make_deferred_yieldable, run_in_background
|