I am using rules as layer to save every version of row in shadow table,
so i cant use unique constraint on column, because of many versions may
have same value.
mito
Jaime Casanova wrote:
> On Mon, Apr 13, 2009 at 11:12 AM, mito <milos.orszag@gmail.com> wrote:
>> It need to simulate unique constraint on field s_users.new_id, so it should
>> deny to update multiple rows with same value.
>>
>> Any suggestions are welcome.
>>
>
> why not simply create a UNIQUE constraint?
>
>