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Merge pull request #1955 from matrix-org/erikj/current_state_query_bypass

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Don't fetch current state in common case
This commit is contained in:
Erik Johnston 2017-02-27 19:15:59 +00:00 committed by GitHub
commit eda96586ca
1 changed files with 15 additions and 0 deletions
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15
synapse/storage/events.py
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@ -311,6 +311,21 @@ class EventsStore(SQLBaseStore):
new_forward_extremeties[room_id] = new_latest_event_ids
len_1 = (
len(latest_event_ids) == 1
and len(new_latest_event_ids) == 1
)
if len_1:
all_single_prev_not_state = all(
len(event.prev_events) == 1
and not event.is_state()
for event, ctx in ev_ctx_rm
)
# Don't bother calculating state if they're just
# a long chain of single ancestor non-state events.
if all_single_prev_not_state:
continue
state = yield self._calculate_state_delta(
room_id, ev_ctx_rm, new_latest_event_ids
)