maintenance/archives/patch-logging-log_actor.sql

   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);