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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