max (timestamptz, timestamptz) does not exist already. You need to
create a simple function in PLpgSQL something like
if a > b
return a;
else
return b;
Even an sql function will do the job here using case statement.
--Imad
www.EntepriseDB.com
On 11/13/06, A. Kretschmer <[EMAIL PROTECTED]> wrote:
am Mon, dem 13.11.2006, um 13:46:00 +0000 mailte T E Schmitz folgendes:
> I tried the following query but the query fails as
> "function max (timestamp w. timezone,timestamp w. timezone) does not exist"
>
> SELECT id,
>
> MAX(last_updated,
> (SELECT MAX (last_updated) FROM product_category_member WHERE
> product_category_member.id = product_category.id))
>
> FROM product_category
>
>
> product_category.last_updated and product_category_member.last_updated
> are timestamps with timezone.
Really, there are no such function. Perhaps this can help you:
SELECT id, MAX(product_category.last_updated),
MAX(product_category_member.last_updated) from product_category,
product_category_member WHERE product_category_member.id =
product_category.id;
**untested**
Your fault is that there are no max(timestamp,timestamp) - funktion and
i think, you should read more about JOINs.
Andreas
--
Andreas Kretschmer
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