9. The hierarchical data structure generator according to claim 7 , wherein the composite database query generator further defines at least one mapping, wherein each of the at least one mapping defines a correspondence between data produced by a database query command within the at least two of the plurality of execution nodes and data objects within the set of objects, and wherein the extract and tag data processor further places at least one data object within the set of data objects into at least one field of the plurality of fields based upon the at least one mapping.
9. The hierarchical data structure generator according to claim 7 , wherein the composite database query generator further defines at least one mapping, wherein each of the at least one mapping defines a correspondence between data produced by a database query command within the at least two of the plurality of execution nodes and data objects within the set of objects, and wherein the extract and tag data processor further places at least one data object within the set of data objects into at least one field of the plurality of fields based upon the at least one mapping. 10. The hierarchical data structure generator according to claim 9 , wherein the composite database query generator further defines at least one modified tagging tree by replacing at least one execution node with at least one mapping.