67 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			67 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Python
		
	
	
# Copyright 2016 OpenMarket 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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import logging
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import simplejson
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from synapse.storage.engines import PostgresEngine
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from synapse.storage.prepare_database import get_statements
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logger = logging.getLogger(__name__)
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ALTER_TABLE = """
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ALTER TABLE event_search ADD COLUMN origin_server_ts BIGINT;
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ALTER TABLE event_search ADD COLUMN stream_ordering BIGINT;
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"""
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def run_create(cur, database_engine, *args, **kwargs):
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    if not isinstance(database_engine, PostgresEngine):
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        return
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    for statement in get_statements(ALTER_TABLE.splitlines()):
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        cur.execute(statement)
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    cur.execute("SELECT MIN(stream_ordering) FROM events")
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    rows = cur.fetchall()
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    min_stream_id = rows[0][0]
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    cur.execute("SELECT MAX(stream_ordering) FROM events")
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    rows = cur.fetchall()
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    max_stream_id = rows[0][0]
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    if min_stream_id is not None and max_stream_id is not None:
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        progress = {
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            "target_min_stream_id_inclusive": min_stream_id,
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            "max_stream_id_exclusive": max_stream_id + 1,
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            "rows_inserted": 0,
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            "have_added_indexes": False,
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        }
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        progress_json = simplejson.dumps(progress)
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        sql = (
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            "INSERT into background_updates (update_name, progress_json)"
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            " VALUES (?, ?)"
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        )
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        sql = database_engine.convert_param_style(sql)
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        cur.execute(sql, ("event_search_order", progress_json))
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def run_upgrade(cur, database_engine, *args, **kwargs):
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    pass
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