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pull/3221/head
Erik Johnston 2018-05-16 11:13:31 +01:00
parent c945af8799
commit 43e6e82c4d
1 changed files with 8 additions and 0 deletions
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8
synapse/storage/events.py
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@ -1872,6 +1872,9 @@ class EventsStore(EventsWorkerStore):
"CREATE INDEX events_to_purge_should_delete" "CREATE INDEX events_to_purge_should_delete"
" ON events_to_purge(should_delete)", " ON events_to_purge(should_delete)",
) )
# We do joins against events_to_purge for e.g. calculating state
# groups to purge, etc., so lets make an index.
txn.execute( txn.execute(
"CREATE INDEX events_to_purge_id" "CREATE INDEX events_to_purge_id"
" ON events_to_purge(event_id)", " ON events_to_purge(event_id)",
@ -2119,6 +2122,11 @@ class EventsStore(EventsWorkerStore):
# #
# So, let's stick it at the end so that we don't block event # So, let's stick it at the end so that we don't block event
# persistence. # persistence.
#
# We do this by calculating the minimum depth of the backwards
# extremities. However, the events in event_backward_extremities
# are ones we don't have yet so we need to look at the events that
# point to it via event_edges table.
txn.execute(""" txn.execute("""
SELECT COALESCE(MIN(depth), 0) SELECT COALESCE(MIN(depth), 0)
FROM event_backward_extremities AS eb FROM event_backward_extremities AS eb