Aggregate awareness is a feature that makes use of 
predefined aggregate tables to enhance the performance of 
SQL transactions. It is used to improve the speed by which 
aggregates are calculated in the database. To set up 
aggregate awareness in a universe, you define or more 
objects using the @Aggregate_Aware function. The syntax for 
this function is as follows:
	
@Aggregate_Aware(aggregate_table_1, ... aggregate_table_n)

The arguments of this function are all the names of 
alternative aggregate tables. When you formulate the 
syntax, you should be aware of the order of the arguments. 
The precedence is from left to right; this means that 
BusinessObjects determines the aggregate to use beginning 
from the leftmost argument.

@Aggregate_Aware(sum(agg_table_1), ... sum(agg_table_n))