11. The method of claim 10 , wherein the set of query results are grouped into one of (i) instances of a set, wherein the field-to-field join constraint includes an instance indicator used to determine which instance of a set that an element of data included in the query results is placed or (ii) an ordered series, wherein an instance identifier is used to determine the order, relative to the series, of an element of data from the query results.
11. The method of claim 10 , wherein the set of query results are grouped into one of (i) instances of a set, wherein the field-to-field join constraint includes an instance indicator used to determine which instance of a set that an element of data included in the query results is placed or (ii) an ordered series, wherein an instance identifier is used to determine the order, relative to the series, of an element of data from the query results. 12. The method of claim 11 , wherein the series is time-ordered.