Hello all, I wrote a function which counts price of product from retail price and discount. It works. But I need to count price with tax of same product. The best way is to use counted price and add only a tax. I would like to do by this way: SELECT count_price(retail, discount) AS price, count_price_tax(price, tax) FROM foo. But PostgreSQL reports that "price" column doesn't exist. It doesn't exist, but is counted by first calling "count_price()" function. Is there some way how I shouldn't count these prices twice and use just counted price? -- Jiří Němec, ICQ: 114651500 www.menea.cz - www stránky a aplikace ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match