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Add state_group index to event_to_state_groups

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This is needed to efficiently check for unreferenced state groups during
purge.
This commit is contained in:
Erik Johnston 2018-10-04 15:24:01 +01:00
parent 17d585753f
commit 4917ff5523
3 changed files with 27 additions and 1 deletions
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7
synapse/storage/state.py
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@ -1114,6 +1114,7 @@ class StateStore(StateGroupWorkerStore, BackgroundUpdateStore):
STATE_GROUP_DEDUPLICATION_UPDATE_NAME = "state_group_state_deduplication"
STATE_GROUP_INDEX_UPDATE_NAME = "state_group_state_type_index"
CURRENT_STATE_INDEX_UPDATE_NAME = "current_state_members_idx"
EVENT_STATE_GROUP_INDEX_UPDATE_NAME = "event_to_state_groups_sg_index"
def __init__(self, db_conn, hs):
super(StateStore, self).__init__(db_conn, hs)
@ -1132,6 +1133,12 @@ class StateStore(StateGroupWorkerStore, BackgroundUpdateStore):
columns=["state_key"],
where_clause="type='m.room.member'",
)
self.register_background_index_update(
self.EVENT_STATE_GROUP_INDEX_UPDATE_NAME,
index_name="event_to_state_groups_sg_index",
table="event_to_state_groups",
columns=["state_group"],
)
def _store_event_state_mappings_txn(self, txn, events_and_contexts):
state_groups = {}