14. The computer-readable memory of claim 13 , wherein the data definition language annotation identifies at least one of a location of the historical data, a source of the archived relation, a data object associated with the archived relation, operation information associated with processing the continuous query, one or more relevant columns of a database corresponding to the historical data, a data object corresponding to output of the continuous query, or a location for providing the output of the continuous query.
13. The computer-readable memory of claim 12 , wherein the archived relation is identified by a data definition language annotation of the continuous query.