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Add more conditions on JOINs to make postgres go a little faster.
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2 changed files with 6 additions and 4 deletions
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@ -212,7 +212,7 @@ class RoomMemberStore(SQLBaseStore):
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sql = (
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"SELECT m.* FROM room_memberships as m"
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" INNER JOIN current_state_events as c"
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" ON m.event_id = c.event_id"
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" ON m.event_id = c.event_id AND m.room_id = c.room_id "
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" WHERE %(where)s"
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) % {
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"where": where_clause,
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@ -149,7 +149,8 @@ class StreamStore(SQLBaseStore):
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# select all the events between from/to with a sensible limit
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sql = (
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"SELECT e.event_id, e.room_id, e.type, s.state_key, "
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"e.stream_ordering FROM events AS e LEFT JOIN state_events as s ON "
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"e.stream_ordering FROM events AS e "
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"LEFT JOIN state_events as s ON "
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"e.event_id = s.event_id "
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"WHERE e.stream_ordering > ? AND e.stream_ordering <= ? "
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"ORDER BY stream_ordering ASC LIMIT %(limit)d "
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@ -214,8 +215,9 @@ class StreamStore(SQLBaseStore):
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current_room_membership_sql = (
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"SELECT m.room_id FROM room_memberships as m "
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"INNER JOIN current_state_events as c ON m.event_id = c.event_id "
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"WHERE m.user_id = ? AND m.membership = 'join'"
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" INNER JOIN current_state_events as c"
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" ON m.event_id = c.event_id AND c.state_key = m.user_id"
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" WHERE m.user_id = ? AND m.membership = 'join'"
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)
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# We also want to get any membership events about that user, e.g.
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