Re: [GENERAL] multiple group by on same table

2011-05-07 Thread Leonardo Francalanci
> I am not sure if this could apply to your case, but maybe - unless you have >done it before - > > you could look at windowing functions Ciao Gabriele, the problem is that the only thing the N queries have in common is the base table; everything else is different, because the different "gro

Re: [GENERAL] multiple group by on same table

2011-05-04 Thread Gabriele Bartolini
Ciao Leonardo, I am not sure if this could apply to your case, but maybe - unless you have done it before - you could look at windowing functions (http://www.postgresql.org/docs/current/interactive/tutorial-window.html). They require PG8.4+ though. Cheers, Gabriele On Wed, 4 May 2011 11:51

Re: [GENERAL] multiple group by on same table

2011-05-04 Thread Sim Zacks
On 05/04/2011 01:51 PM, Leonardo Francalanci wrote: Hi, I'm going to need to GROUP BY the same table multiple times. That is, something like: select (some aggregate functions here) from tableA group by f1, f2 select (some other aggregate functions here) from tableA group by f3, f4 etc The

[GENERAL] multiple group by on same table

2011-05-04 Thread Leonardo Francalanci
Hi, I'm going to need to GROUP BY the same table multiple times. That is, something like: select (some aggregate functions here) from tableA group by f1, f2 select (some other aggregate functions here) from tableA group by f3, f4 etc The table is pretty large; can someone suggest the best way