В Птн, 02.07.2004, в 19:22, teknet(at)poczta(dot)onet(dot)pl пишет:
> Hello
> i have:
> create table student(
> id SERIAL NOT NULL,
> name VARCHAR(35) NOT NULL,
> primary key (id)
> );
>
> and when i try to insert like this:
> insert into student (name) values('me');
> i receive error:
> ERROR: duplicate key violates unique constraint "student_pkey"
Is this scenario possible in standard SQL identity columns? From what I
read here[1], a standard IDENTITY column can guarantee successful
insertion of a unique key. Is there similar support planned for
PostgreSQL?
Thanks.
--
Markus Bertheau <twanger(at)bluetwanger(dot)de>