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User Cursor.__iter__ instead of fetchall

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This prevents unnecessary construction of lists
This commit is contained in:
Erik Johnston 2017-03-23 17:53:49 +00:00
parent 59358cd3e7
commit 00957d1aa4
16 changed files with 41 additions and 42 deletions
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3
synapse/storage/state.py
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@ -373,10 +373,9 @@ class StateStore(SQLBaseStore):
" WHERE state_group = ? %s" % (where_clause,),
args
)
rows = txn.fetchall()
results[group].update({
(typ, state_key): event_id
for typ, state_key, event_id in rows
for typ, state_key, event_id in txn
if (typ, state_key) not in results[group]
})