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Create indices after insertion
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parent
93139a1fb8
commit
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@ -1890,20 +1890,6 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
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")"
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)
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# create an index on should_delete because later we'll be looking for
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# the should_delete / shouldn't_delete subsets
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txn.execute(
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"CREATE INDEX events_to_purge_should_delete"
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" ON events_to_purge(should_delete)",
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)
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# We do joins against events_to_purge for e.g. calculating state
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# groups to purge, etc., so lets make an index.
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txn.execute(
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"CREATE INDEX events_to_purge_id"
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" ON events_to_purge(event_id)",
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)
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# First ensure that we're not about to delete all the forward extremeties
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txn.execute(
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"SELECT e.event_id, e.depth FROM events as e "
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@ -1950,6 +1936,24 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
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),
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should_delete_params,
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)
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# We create the indices *after* insertion as that's a lot faster.
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# create an index on should_delete because later we'll be looking for
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# the should_delete / shouldn't_delete subsets
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txn.execute(
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"CREATE INDEX events_to_purge_should_delete"
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" ON events_to_purge(should_delete)",
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)
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# We do joins against events_to_purge for e.g. calculating state
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# groups to purge, etc., so lets make an index.
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txn.execute(
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"CREATE INDEX events_to_purge_id"
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" ON events_to_purge(event_id)",
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)
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txn.execute(
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"SELECT event_id, should_delete FROM events_to_purge"
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)
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