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68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from synapse.storage.database import LoggingTransaction
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from synapse.storage.engines import BaseDatabaseEngine
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from synapse.storage.prepare_database import get_statements
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FIX_INDEXES = """
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-- rebuild indexes as uniques
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DROP INDEX groups_invites_g_idx;
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CREATE UNIQUE INDEX group_invites_g_idx ON group_invites(group_id, user_id);
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DROP INDEX groups_users_g_idx;
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CREATE UNIQUE INDEX group_users_g_idx ON group_users(group_id, user_id);
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-- rename other indexes to actually match their table names..
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DROP INDEX groups_users_u_idx;
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CREATE INDEX group_users_u_idx ON group_users(user_id);
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DROP INDEX groups_invites_u_idx;
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CREATE INDEX group_invites_u_idx ON group_invites(user_id);
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DROP INDEX groups_rooms_g_idx;
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CREATE UNIQUE INDEX group_rooms_g_idx ON group_rooms(group_id, room_id);
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DROP INDEX groups_rooms_r_idx;
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CREATE INDEX group_rooms_r_idx ON group_rooms(room_id);
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"""
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def run_create(cur: LoggingTransaction, database_engine: BaseDatabaseEngine) -> None:
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rowid = database_engine.row_id_name
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# remove duplicates from group_users & group_invites tables
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cur.execute(
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"""
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DELETE FROM group_users WHERE %s NOT IN (
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SELECT min(%s) FROM group_users GROUP BY group_id, user_id
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);
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"""
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% (rowid, rowid)
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)
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cur.execute(
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"""
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DELETE FROM group_invites WHERE %s NOT IN (
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SELECT min(%s) FROM group_invites GROUP BY group_id, user_id
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);
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"""
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% (rowid, rowid)
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)
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for statement in get_statements(FIX_INDEXES.splitlines()):
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cur.execute(statement)
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