Add two different columns for ordering the events table, one which can be used for pagination and one which can be as tokens for notifying clients. Also add a 'processed' field which is currently always set to True

paul/schema_breaking_changes
Erik Johnston 2014-08-18 15:50:41 +01:00
parent 1c2caacd67
commit fc26275bb3
4 changed files with 33 additions and 19 deletions

View File

@ -63,7 +63,7 @@ class FederationEventHandler(object):
Deferred: Resolved when it has successfully been queued for
processing.
"""
yield self._fill_out_prev_events(event)
yield self.fill_out_prev_events(event)
pdu = self.pdu_codec.pdu_from_event(event)
@ -129,7 +129,7 @@ class FederationEventHandler(object):
yield self.event_handler.on_receive(new_state_event)
@defer.inlineCallbacks
def _fill_out_prev_events(self, event):
def fill_out_prev_events(self, event):
if hasattr(event, "prev_events"):
return

View File

@ -43,9 +43,10 @@ class DataStore(RoomMemberStore, RoomStore,
def __init__(self, hs):
super(DataStore, self).__init__(hs)
self.event_factory = hs.get_event_factory()
self.hs = hs
@defer.inlineCallbacks
def persist_event(self, event):
def persist_event(self, event, backfilled=False):
if event.type == RoomMemberEvent.TYPE:
yield self._store_room_member(event)
elif event.type == FeedbackEvent.TYPE:
@ -57,7 +58,7 @@ class DataStore(RoomMemberStore, RoomStore,
elif event.type == RoomTopicEvent.TYPE:
yield self._store_room_topic(event)
ret = yield self._store_event(event)
ret = yield self._store_event(event, backfilled)
defer.returnValue(ret)
@defer.inlineCallbacks
@ -79,14 +80,23 @@ class DataStore(RoomMemberStore, RoomStore,
defer.returnValue(event)
@defer.inlineCallbacks
def _store_event(self, event):
def _store_event(self, event, backfilled):
# FIXME (erikj): This should be removed when we start amalgamating
# event and pdu storage.
yield self.hs.get_federation().fill_out_prev_events(event)
vals = {
"topological_ordering": event.depth,
"event_id": event.event_id,
"type": event.type,
"room_id": event.room_id,
"content": json.dumps(event.content),
"processed": True,
}
if backfilled:
vals["token_ordering"] = "-1"
unrec = {
k: v
for k, v in event.get_full_dict().items()
@ -96,7 +106,7 @@ class DataStore(RoomMemberStore, RoomStore,
yield self._simple_insert("events", vals)
if hasattr(event, "state_key"):
if not backfilled and hasattr(event, "state_key"):
vals = {
"event_id": event.event_id,
"room_id": event.room_id,

View File

@ -14,12 +14,15 @@
*/
CREATE TABLE IF NOT EXISTS events(
ordering INTEGER PRIMARY KEY AUTOINCREMENT,
token_ordering INTEGER AUTOINCREMENT,
topological_ordering INTEGER NOT NULL,
event_id TEXT NOT NULL,
type TEXT NOT NULL,
room_id TEXT,
content TEXT,
unrecognized_keys TEXT
room_id TEXT NOT NULL,
content TEXT NOT NULL,
unrecognized_keys TEXT,
processed BOOL NOT NULL,
CONSTRAINT ev_uniq UNIQUE (event_id)
);
CREATE TABLE IF NOT EXISTS state_events(
@ -35,7 +38,7 @@ CREATE TABLE IF NOT EXISTS current_state_events(
room_id TEXT NOT NULL,
type TEXT NOT NULL,
state_key TEXT NOT NULL,
CONSTRAINT uniq UNIQUE (room_id, type, state_key) ON CONFLICT REPLACE
CONSTRAINT curr_uniq UNIQUE (room_id, type, state_key) ON CONFLICT REPLACE
);
CREATE TABLE IF NOT EXISTS room_memberships(

View File

@ -73,13 +73,14 @@ class StreamStore(SQLBaseStore):
# Constraints and ordering depend on direction.
if from_key < to_key:
sql += (
"AND e.ordering > ? AND e.ordering < ? "
"ORDER BY ordering ASC LIMIT %(limit)d "
"AND e.token_ordering > ? AND e.token_ordering < ? "
"ORDER BY token_ordering, rowid ASC LIMIT %(limit)d "
) % {"limit": limit}
else:
sql += (
"AND e.ordering < ? AND e.ordering > ? "
"ORDER BY ordering DESC LIMIT %(limit)d "
"AND e.token_ordering < ? "
"AND e.token_ordering > ? "
"ORDER BY e.token_ordering, rowid DESC LIMIT %(limit)d "
) % {"limit": int(limit)}
rows = yield self._execute_and_decode(
@ -91,9 +92,9 @@ class StreamStore(SQLBaseStore):
if rows:
if from_key < to_key:
key = max([r["ordering"] for r in rows])
key = max([r["token_ordering"] for r in rows])
else:
key = min([r["ordering"] for r in rows])
key = min([r["token_ordering"] for r in rows])
else:
key = to_key
@ -105,7 +106,7 @@ class StreamStore(SQLBaseStore):
sql = (
"SELECT * FROM events WHERE room_id = ? "
"ORDER BY ordering DESC LIMIT ? "
"ORDER BY token_ordering, rowid DESC LIMIT ? "
)
rows = yield self._execute_and_decode(
@ -120,7 +121,7 @@ class StreamStore(SQLBaseStore):
@defer.inlineCallbacks
def get_room_events_max_id(self):
res = yield self._execute_and_decode(
"SELECT MAX(ordering) as m FROM events"
"SELECT MAX(token_ordering) as m FROM events"
)
if not res: