1 ALTER TABLE /*_*/logging
2 ADD COLUMN log_actor
bigint unsigned
NOT NULL DEFAULT 0 AFTER log_user_text
;
3 CREATE INDEX /*i*/actor_time
ON /*_*/logging (log_actor
, log_timestamp
);
4 CREATE INDEX /*i*/log_actor_type_time
ON /*_*/logging (log_actor
, log_type
, log_timestamp
);