23. The computer system of claim 22 in which the processor is further configured for: transforming the query block from a parent block into a child block during compilation of the statement.
23. The computer system of claim 22 in which the processor is further configured for: transforming the query block from a parent block into a child block during compilation of the statement. 24. The computer system of claim 23 in which the processor is further configured for: determining a name for the child block based on a transformation applied to the parent block and a name of the parent block.