Marti Raudsepp writes:
> On Thu, Dec 20, 2012 at 3:28 AM, Robert James wrote:
>> Is there an aggregate that will return an arbitrary instance? That is,
>> not necessarily the max or min, just any one? (Which might perform
>> better than max or min)
>>
>> More importantly:
>> Is there one which w
On Thu, Dec 20, 2012 at 3:28 AM, Robert James wrote:
> Is there an aggregate that will return an arbitrary instance? That is,
> not necessarily the max or min, just any one? (Which might perform
> better than max or min)
>
> More importantly:
> Is there one which will return an arbitrary instance
On Thu, Dec 20, 2012 at 12:00 PM, Robert James wrote:
> I see. What if I need to do this along with an Aggregate Query. Eg
> something like:
>
> SELECT x,y,z, MAX(a), MAX(b), DONT_CARE_AS_LONG_AS_NOT_NULL(c),
> DONT_CAR_AS_LONG_AS_P_IS_TRUE(d,p)
> ...
> GROUP BY x,y,z
>
>
ah, I get what you're t
I see. What if I need to do this along with an Aggregate Query. Eg
something like:
SELECT x,y,z, MAX(a), MAX(b), DONT_CARE_AS_LONG_AS_NOT_NULL(c),
DONT_CAR_AS_LONG_AS_P_IS_TRUE(d,p)
...
GROUP BY x,y,z
On 12/20/12, Richard Broersma wrote:
> On Thu, Dec 20, 2012 at 5:45 AM, Robert James
> wrote
On Thu, Dec 20, 2012 at 5:45 AM, Robert James wrote:
> Sergey - That's an interesting option, but I'm not sure how to use it
> as an aggregate. Could you give an example?
>
Here is an example:
buildinghac=>
SELECT itemnbr, buildingnbr
FROM Actionitems
ORDER BY buildingnbr
LIMIT 10;
it
Sergey - That's an interesting option, but I'm not sure how to use it
as an aggregate. Could you give an example?
On 12/20/12, Sergey Konoplev wrote:
> On Wed, Dec 19, 2012 at 5:28 PM, Robert James
> wrote:
>> And even better:
>> An aggregate which will return the first instance that meets a ce
On Wed, Dec 19, 2012 at 5:28 PM, Robert James wrote:
> And even better:
> An aggregate which will return the first instance that meets a certain
> predicate?
Take a look at DISTINCT ON.
--
Sergey Konoplev
Database and Software Architect
http://www.linkedin.com/in/grayhemp
Phones:
USA +1 415 867
