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Use the current_state_events.membership column

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This commit is contained in:
Erik Johnston 2019-07-17 16:17:17 +01:00
parent 059d8c1a4e
commit 8e1ada9e6f
1 changed files with 37 additions and 17 deletions
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54
synapse/storage/roommember.py
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@ -115,14 +115,23 @@ class RoomMemberWorkerStore(EventsWorkerStore):
@cached(max_entries=100000, iterable=True)
def get_users_in_room(self, room_id):
def f(txn):
sql = (
"SELECT m.user_id FROM room_memberships as m"
" INNER JOIN current_state_events as c"
" ON m.event_id = c.event_id "
" AND m.room_id = c.room_id "
" AND m.user_id = c.state_key"
" WHERE c.type = 'm.room.member' AND c.room_id = ? AND m.membership = ?"
)
# If we can assume current_state_events.membership is up to date
# then we can avoid a join, which is a Very Good Thing given how
# frequently this function gets called.
if self._current_state_events_membership_up_to_date:
sql = """
SELECT state_key FROM current_state_events
WHERE type = 'm.room.member' AND room_id = ? AND membership = ?
"""
else:
sql = """
SELECT state_key FROM room_memberships as m
INNER JOIN current_state_events as c
ON m.event_id = c.event_id
AND m.room_id = c.room_id
AND m.user_id = c.state_key
WHERE c.type = 'm.room.member' AND c.room_id = ? AND m.membership = ?
"""
txn.execute(sql, (room_id, Membership.JOIN))
return [to_ascii(r[0]) for r in txn]
@ -144,15 +153,26 @@ class RoomMemberWorkerStore(EventsWorkerStore):
# first get counts.
# We do this all in one transaction to keep the cache small.
# FIXME: get rid of this when we have room_stats
sql = """
SELECT count(*), m.membership FROM room_memberships as m
INNER JOIN current_state_events as c
ON m.event_id = c.event_id
AND m.room_id = c.room_id
AND m.user_id = c.state_key
WHERE c.type = 'm.room.member' AND c.room_id = ?
GROUP BY m.membership
"""
# If we can assume current_state_events.membership is up to date
# then we can avoid a join, which is a Very Good Thing given how
# frequently this function gets called.
if self._current_state_events_membership_up_to_date:
sql = """
SELECT count(*), membership FROM current_state_events
WHERE type = 'm.room.member' AND room_id = ?
GROUP BY membership
"""
else:
sql = """
SELECT count(*), m.membership FROM room_memberships as m
INNER JOIN current_state_events as c
ON m.event_id = c.event_id
AND m.room_id = c.room_id
AND m.user_id = c.state_key
WHERE c.type = 'm.room.member' AND c.room_id = ?
GROUP BY m.membership
"""
txn.execute(sql, (room_id,))
res = {}