This will work for this particular example. But what if my case
statement is more complicated than that? Example:
select
metric_type,
case metric_type
when 0 then
sum (1 / val)
when 1 then
sum (val)
when 2 then
max (val)
when 3 then
min (val)
end as result
from metrics
group by metric_type
Thanks!
On 10/3/07, Rodrigo De León <rdeleonp@xxxxxxxxx> wrote:
> On 10/3/07, Jimmy Choi <yhjchoi@xxxxxxxxx> wrote:
> > I expect to get the following result set:
> >
> > metric_type | result
> > ------------+-------
> > 0 | 2
> > 1 | 3
>
> Try:
>
> SELECT metric_type
> , SUM(CASE metric_type
> WHEN 0
> THEN 1 / val
> WHEN 1
> THEN val
> END) AS RESULT
> FROM metrics
> GROUP BY metric_type
> ORDER BY metric_type
>
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