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- # Copyright 2016 OpenMarket Ltd
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
-
- import logging
-
- from synapse.storage.database import LoggingTransaction
- from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine
- from synapse.storage.prepare_database import get_statements
-
- logger = logging.getLogger(__name__)
-
-
- # This stream is used to notify workers over replication that some caches have
- # been invalidated that they cannot infer from the other streams.
- CREATE_TABLE = """
- CREATE TABLE cache_invalidation_stream (
- stream_id BIGINT,
- cache_func TEXT,
- keys TEXT[],
- invalidation_ts BIGINT
- );
-
- CREATE INDEX cache_invalidation_stream_id ON cache_invalidation_stream(stream_id);
- """
-
-
- def run_create(cur: LoggingTransaction, database_engine: BaseDatabaseEngine) -> None:
- if not isinstance(database_engine, PostgresEngine):
- return
-
- for statement in get_statements(CREATE_TABLE.splitlines()):
- cur.execute(statement)
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