62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
# Copyright 2015, 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.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 events ADD COLUMN origin_server_ts BIGINT;"
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"CREATE INDEX events_ts ON events(origin_server_ts, stream_ordering);"
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)
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def run_create(cur, database_engine, *args, **kwargs):
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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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}
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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_origin_server_ts", progress_json))
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def run_upgrade(*args, **kwargs):
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pass
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