diff --git a/synapse/storage/event_push_actions.py b/synapse/storage/event_push_actions.py
index 10e9305f7b..51b13e9498 100644
--- a/synapse/storage/event_push_actions.py
+++ b/synapse/storage/event_push_actions.py
@@ -26,10 +26,19 @@ logger = logging.getLogger(__name__)
class EventPushActionsStore(SQLBaseStore):
+ EPA_HIGHLIGHT_INDEX = "epa_highlight_index"
+
def __init__(self, hs):
self.stream_ordering_month_ago = None
super(EventPushActionsStore, self).__init__(hs)
+ self.register_background_index_update(
+ self.EPA_HIGHLIGHT_INDEX,
+ index_name="event_push_actions_u_highlight",
+ table="event_push_actions",
+ columns=["user_id", "stream_ordering", "highlight"],
+ )
+
def _set_push_actions_for_event_and_users_txn(self, txn, event, tuples):
"""
Args:
@@ -353,12 +362,14 @@ class EventPushActionsStore(SQLBaseStore):
before_clause += " "
before_clause += "AND epa.highlight = 1"
+ # NB. This assumes event_ids are globally unique since
+ # it makes the query easier to index
sql = (
"SELECT epa.event_id, epa.room_id,"
" epa.stream_ordering, epa.topological_ordering,"
" epa.actions, epa.profile_tag, e.received_ts"
" FROM event_push_actions epa, events e"
- " WHERE epa.room_id = e.room_id AND epa.event_id = e.event_id"
+ " WHERE epa.event_id = e.event_id"
" AND epa.user_id = ? %s"
" ORDER BY epa.stream_ordering DESC"
" LIMIT ?"
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