| From: | Michael Fuhr <mike(at)fuhr(dot)org> |
|---|---|
| To: | operationsengineer1(at)yahoo(dot)com |
| Cc: | "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org> |
| Subject: | Re: Sort of Complex Query - Howto Eliminate Repeating Results |
| Date: | 2006-01-12 20:35:32 |
| Message-ID: | 20060112203531.GA22845@winnie.fuhr.org |
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| Thread: | |
| Lists: | pgsql-novice |
On Thu, Jan 12, 2006 at 12:07:12PM -0800, operationsengineer1(at)yahoo(dot)com wrote:
> SELECT DISTINCT t_product.product_id,
> t_product.product_number,
> t_serial_number.serial_number_id,
> t_serial_number.serial_number
[...]
> ORDER BY t_serial_number.serial_number::int ASC
>
> resulting error:
>
> ERROR: for SELECT DISTINCT, ORDER BY expressions must
> appear in select list
What data type is serial_number? I'm guessing not integer, else
you wouldn't be casting it to integer in the ORDER BY clause. If
you need that cast then also use it in the SELECT list:
SELECT DISTINCT t_product.product_id,
t_product.product_number,
t_serial_number.serial_number_id,
t_serial_number.serial_number::int
--
Michael Fuhr
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