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c66a06ac6b
This is in preparation for having multiple data stores that offer different functionality, e.g. splitting out state or event storage.
35 lines
1.1 KiB
Python
35 lines
1.1 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.engines import PostgresEngine
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def run_create(cur, database_engine, *args, **kwargs):
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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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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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def run_upgrade(*args, **kwargs):
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pass
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