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-- @author tungs1 -- @modified 2013-07-28 12:00:00 -- @created 2013-07-28 12:00:00 -- @description groupingfunction groupingfunc101.sql -- @db_name groupingfunction -- @executemode normal -- @tags groupingfunction -- order 1 SELECT SUM(sale.pn) as g1, GROUPING(product.pname) as g2 FROM product, sale WHERE product.pn=sale.pn GROUP BY ROLLUP((sale.pn,product.pname,sale.pn)) ORDER BY g1,g2; g1 | g2 ------+---- 200 | 0 300 | 0 400 | 0 600 | 0 700 | 0 800 | 0 800 | 0 1000 | 0 4800 | 1 (9 rows)