7. The method of claim 5 , wherein the scenario aggregate statistics are programmed via user-defined aggregate queries associated with the at least one of the initial result set and the subsequent result set, wherein a syntax of the user-defined aggregate queries is specific to a standard query processing engine, and wherein a signature of the scenario aggregate statistics creates a signature that corresponds to a set of table valued functions.
5. The method of claim 1 , wherein the set of characteristics includes aggregate statistical characteristics comprising at least one of generic aggregate statistics and scenario aggregate statistics, wherein the generic aggregate statistics are calculated in a manner that is independent of a set of semantics of the attributes, and wherein the scenario aggregate statistics are defined through a domain expert and are relevant in a particular scenario to enable incorporation of a domain-specific interpretation of semantics of each attribute and each set of data of the at least one of the initial result set and the subsequent result set.