CREATE AGGREGATION POLICY my_agg_policy 
  AS () RETURNS AGGREGATION_CONSTRAINT -> AGGREGATION_CONSTRAINT(MIN_GROUP_SIZE => 5); 
 
ALTER TABLE my_table SET AGGREGATION POLICY my_agg_policy; 
 
The code above will have the following effect on this table: 
•	Must always be grouped; queries without a GROUP BY clause will be rejected. 
•	Result records for groups with fewer than MIN_GROUP_SIZE (less than 5 in this example) will not be shown.
•	Several aggregate functions are available. Currently, the following four are available. 
o	AVERAGE 
o	COUNT 
o	HLL 
o	SUM 
•	Filters and joins are basically freely available.