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Initial hack at wiring together pagination and backfill

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This commit is contained in:
Erik Johnston 2015-05-11 18:01:31 +01:00
parent 17653a5dfe
commit 84e6b4001f
3 changed files with 141 additions and 5 deletions
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28
synapse/storage/event_federation.py
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@ -79,6 +79,28 @@ class EventFederationStore(SQLBaseStore):
room_id,
)
def get_oldest_events_with_depth_in_room(self, room_id):
return self.runInteraction(
"get_oldest_events_with_depth_in_room",
self.get_oldest_events_with_depth_in_room_txn,
room_id,
)
def get_oldest_events_with_depth_in_room_txn(self, txn, room_id):
sql = (
"SELECT b.event_id, MAX(e.depth) FROM events as e"
" INNER JOIN event_edges as g"
" ON g.event_id = e.event_id AND g.room_id = e.room_id"
" INNER JOIN event_backward_extremities as b"
" ON g.prev_event_id = b.event_id AND g.room_id = b.room_id"
" WHERE b.room_id = ? AND g.is_state is ?"
" GROUP BY b.event_id"
)
txn.execute(sql, (room_id, False,))
return dict(txn.fetchall())
def _get_oldest_events_in_room_txn(self, txn, room_id):
return self._simple_select_onecol_txn(
txn,
@ -247,11 +269,13 @@ class EventFederationStore(SQLBaseStore):
do_insert = depth < min_depth if min_depth else True
if do_insert:
self._simple_insert_txn(
self._simple_upsert_txn(
txn,
table="room_depth",
values={
keyvalues={
"room_id": room_id,
},
values={
"min_depth": depth,
},
)