33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from synapse.storage.database import LoggingTransaction
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from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine
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def run_create(cur: LoggingTransaction, database_engine: BaseDatabaseEngine) -> None:
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if isinstance(database_engine, PostgresEngine):
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# if we already have some state groups, we want to start making new
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# ones with a higher id.
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cur.execute("SELECT max(id) FROM state_groups")
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row = cur.fetchone()
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assert row is not None
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if row[0] is None:
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start_val = 1
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else:
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start_val = row[0] + 1
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cur.execute("CREATE SEQUENCE state_group_id_seq START WITH %s", (start_val,))
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