Re: count and group by question
От | Ryan Mahoney |
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Тема | Re: count and group by question |
Дата | |
Msg-id | 1024527625.22814.259.camel@ryan.flowlabs.com обсуждение исходный текст |
Ответ на | Re: count and group by question ("Dann Corbit" <DCorbit@connx.com>) |
Ответы |
Re: count and group by question
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Список | pgsql-hackers |
OK, so I tried both queries but they don't meet my requirement, I think I wasn't clear. The methods suggested both return the aggregate count as if the rows had not been grouped. What I am looking for is a count of how many rows were returned *with* the grouping. So, suppose there are 1000 orders total, but when grouped by product 200 rows are returned. I am trying to find a way to get that 200 not the original 1000 count. Does this make sense? The Union was really interesting, I haven't used union very much - but I will now! Thanks for your suggestions! -r > > SELECT > > to_char(pa_shopping_cart.delivery_date, 'FMMM/FMDD/YY') AS > > delivery_date, > > pa_products.product_name AS product_name, > > pa_orders.order_state AS state, > > count(*) AS count > > FROM > > pa_shopping_cart, > > pa_products, > > pa_orders > > WHERE > > pa_shopping_cart.order_id = pa_orders.order_id AND > > pa_shopping_cart.product_id = pa_products.product_id > > GROUP BY > > pa_shopping_cart.delivery_date, > > pa_products.product_name, > > pa_orders.order_state > > > > UNION > > SELECT > > NULL,NULL,NULL, count > > from ( > > select count(*) AS count > > FROM > > pa_shopping_cart, > > pa_products, > > pa_orders > > WHERE > > pa_shopping_cart.order_id = pa_orders.order_id AND > > pa_shopping_cart.product_id = pa_products.product_id > > ) total > > > > ORDER BY > > pa_shopping_cart.delivery_date, pa_products.product_name; > > > > make the NULL,NULL,NULL part something else to get it sorted where you > > want.
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