12. The apparatus of claim 1, wherein the query engine is programmed to evaluate an operator having a multi-valued operand, having one or more values corresponding thereto and arising from a single record.
12. The apparatus of claim 1, wherein the query engine is programmed to evaluate an operator having a multi-valued operand, having one or more values corresponding thereto and arising from a single record. 14. The apparatus of claim 12 wherein the operator is selected from the group consisting of unary operators and binary operators.