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1 changed files with 19 additions and 8 deletions
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@ -483,6 +483,10 @@ class EventsStore(SQLBaseStore):
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retcols=["event_id", "type", "state_key"],
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)
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# Figure out what has changed (if anything). Then we simply delete
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# and readd the keys that have been changed.
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# This saves us from deleting and reinserting thousands of rows for
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# large rooms.
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existing_events = set(row["event_id"] for row in existing_state_rows)
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new_events = set(ev_id for ev_id in current_state.itervalues())
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changed_events = existing_events ^ new_events
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@ -492,14 +496,6 @@ class EventsStore(SQLBaseStore):
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[(ev_id,) for ev_id in changed_events],
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)
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# Add an entry to the current_state_resets table to record the point
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# where we clobbered the current state
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self._simple_insert_txn(
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txn,
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table="current_state_resets",
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values={"event_stream_ordering": max_stream_order}
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)
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events_to_insert = (new_events - existing_events)
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to_insert = [
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(key, ev_id) for key, ev_id in current_state.iteritems()
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@ -519,6 +515,13 @@ class EventsStore(SQLBaseStore):
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],
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)
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# Invalidate the various caches
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# Figure out the changes of membership to invalidate the
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# `get_rooms_for_user` cache.
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# We find out which membership events we may have deleted
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# and which we have added, then we invlidate the caches for all
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# those users.
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members_changed = set(
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row["state_key"] for row in existing_state_rows
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if row["event_id"] in changed_events
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@ -534,6 +537,14 @@ class EventsStore(SQLBaseStore):
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txn.call_after(self.get_users_in_room.invalidate, (room_id,))
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# Add an entry to the current_state_resets table to record the point
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# where we clobbered the current state
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self._simple_insert_txn(
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txn,
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table="current_state_resets",
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values={"event_stream_ordering": max_stream_order}
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)
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for room_id, new_extrem in new_forward_extremeties.items():
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self._simple_delete_txn(
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txn,
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