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https://mau.dev/maunium/synapse.git
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switch back from GIST to GIN indexes
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parent
3f9f1c50f3
commit
e79db0a673
@ -31,7 +31,7 @@ class SearchStore(BackgroundUpdateStore):
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EVENT_SEARCH_UPDATE_NAME = "event_search"
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EVENT_SEARCH_ORDER_UPDATE_NAME = "event_search_order"
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EVENT_SEARCH_USE_GIST_POSTGRES_NAME = "event_search_postgres_gist"
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EVENT_SEARCH_USE_GIN_POSTGRES_NAME = "event_search_postgres_gin"
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def __init__(self, db_conn, hs):
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super(SearchStore, self).__init__(db_conn, hs)
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@ -43,8 +43,8 @@ class SearchStore(BackgroundUpdateStore):
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self._background_reindex_search_order
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)
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self.register_background_update_handler(
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self.EVENT_SEARCH_USE_GIST_POSTGRES_NAME,
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self._background_reindex_gist_search
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self.EVENT_SEARCH_USE_GIN_POSTGRES_NAME,
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self._background_reindex_gin_search
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)
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@defer.inlineCallbacks
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@ -145,25 +145,30 @@ class SearchStore(BackgroundUpdateStore):
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defer.returnValue(result)
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@defer.inlineCallbacks
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def _background_reindex_gist_search(self, progress, batch_size):
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def _background_reindex_gin_search(self, progress, batch_size):
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'''This handles old synapses which used GIST indexes; converting them
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back to be GIN as per the actual schema. Otherwise it crashes out
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as a NOOP
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'''
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def create_index(conn):
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conn.rollback()
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conn.set_session(autocommit=True)
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c = conn.cursor()
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c.execute(
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"CREATE INDEX CONCURRENTLY event_search_fts_idx_gist"
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" ON event_search USING GIST (vector)"
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"CREATE INDEX CONCURRENTLY event_search_fts_idx"
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" ON event_search USING GIN (vector)"
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)
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c.execute("DROP INDEX event_search_fts_idx")
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c.execute("DROP INDEX event_search_fts_idx_gist")
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conn.set_session(autocommit=False)
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if isinstance(self.database_engine, PostgresEngine):
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yield self.runWithConnection(create_index)
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yield self._end_background_update(self.EVENT_SEARCH_USE_GIST_POSTGRES_NAME)
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yield self._end_background_update(self.EVENT_SEARCH_USE_GIN_POSTGRES_NAME)
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defer.returnValue(1)
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@defer.inlineCallbacks
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