029.cursors.sql
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			ALTER TABLE {$NAMESPACE}_timeline.timeline_event
			ADD dataID int unsigned;

			ALTER TABLE {$NAMESPACE}_timeline.timeline_event
			ADD UNIQUE KEY (dataID);

			UPDATE {$NAMESPACE}_timeline.timeline_event e,
			{$NAMESPACE}_timeline.timeline_eventdata d
			SET e.dataID = d.id
			WHERE d.eventID = e.id;

			ALTER TABLE {$NAMESPACE}_timeline.timeline_eventdata
			DROP eventID;

phab/resources/sql/patches/029.cursors.sqlb256f2d7b2dbstable