-- @author tungs1
-- @modified 2013-07-28 12:00:00
-- @created 2013-07-28 12:00:00
-- @description groupingfunction groupingfunc167.sql
-- @db_name groupingfunction
-- @executemode normal
-- @tags groupingfunction
SELECT sale.pn, SUM(sale.pn) as g1 FROM product, sale WHERE product.pn=sale.pn GROUP BY GROUPING SETS (sale.pn, product.pname) ORDER BY 1,2;
 pn  |  g1  
-----+------
 100 |  200
 200 |  400
 300 |  300
 400 |  800
 500 | 1000
 600 |  600
 700 |  700
 800 |  800
     |  200
     |  300
     |  400
     |  700
     |  800
     |  800
     | 1600
(15 rows)