anonymousland-synapse/synapse/storage/schema/delta/16/unique_constraints.sql
Neil Johnson 2d951686a7
drop tables listed in #1830 (#4992)
Tables dropped: 
 * application_services, 
 * application_services_regex, 
 * transaction_id_to_pdu, 
 * stats_reporting
 * current_state_resets
 * event_content_hashes
 * event_destinations
 * event_edge_hashes
 * event_signatures
 * feedback
 * room_hosts
 * state_forward_extremities
2019-04-08 15:37:26 +01:00

73 lines
2.0 KiB
SQL

-- We can use SQLite features here, since other db support was only added in v16
--
DELETE FROM current_state_events WHERE rowid not in (
SELECT MIN(rowid) FROM current_state_events GROUP BY event_id
);
DROP INDEX IF EXISTS current_state_events_event_id;
CREATE UNIQUE INDEX current_state_events_event_id ON current_state_events(event_id);
--
DELETE FROM room_memberships WHERE rowid not in (
SELECT MIN(rowid) FROM room_memberships GROUP BY event_id
);
DROP INDEX IF EXISTS room_memberships_event_id;
CREATE UNIQUE INDEX room_memberships_event_id ON room_memberships(event_id);
--
DELETE FROM topics WHERE rowid not in (
SELECT MIN(rowid) FROM topics GROUP BY event_id
);
DROP INDEX IF EXISTS topics_event_id;
CREATE UNIQUE INDEX topics_event_id ON topics(event_id);
--
DELETE FROM room_names WHERE rowid not in (
SELECT MIN(rowid) FROM room_names GROUP BY event_id
);
DROP INDEX IF EXISTS room_names_id;
CREATE UNIQUE INDEX room_names_id ON room_names(event_id);
--
DELETE FROM presence WHERE rowid not in (
SELECT MIN(rowid) FROM presence GROUP BY user_id
);
DROP INDEX IF EXISTS presence_id;
CREATE UNIQUE INDEX presence_id ON presence(user_id);
--
DELETE FROM presence_allow_inbound WHERE rowid not in (
SELECT MIN(rowid) FROM presence_allow_inbound
GROUP BY observed_user_id, observer_user_id
);
DROP INDEX IF EXISTS presence_allow_inbound_observers;
CREATE UNIQUE INDEX presence_allow_inbound_observers ON presence_allow_inbound(
observed_user_id, observer_user_id
);
--
DELETE FROM presence_list WHERE rowid not in (
SELECT MIN(rowid) FROM presence_list
GROUP BY user_id, observed_user_id
);
DROP INDEX IF EXISTS presence_list_observers;
CREATE UNIQUE INDEX presence_list_observers ON presence_list(
user_id, observed_user_id
);
--
DELETE FROM room_aliases WHERE rowid not in (
SELECT MIN(rowid) FROM room_aliases GROUP BY room_alias
);
DROP INDEX IF EXISTS room_aliases_id;
CREATE INDEX room_aliases_id ON room_aliases(room_id);