From: | hubert depesz lubaczewski <depesz(at)depesz(dot)com> |
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To: | Robert Buckley <robertdbuckley(at)yahoo(dot)com> |
Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: auto-increment column |
Date: | 2011-10-04 11:37:09 |
Message-ID: | 20111004113709.GA10419@depesz.com |
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Thread: | |
Lists: | pgsql-general |
On Tue, Oct 04, 2011 at 12:30:48PM +0100, Robert Buckley wrote:
> Hi,
>
> I have a column in a table called hist_id with the datatype "integer". When I created the table I assigned this column the primary key constraint but didn´t make it an auto-increment column.
>
> How could I do this to an the already existing column?
>
> I have created the sequence with the following command but don´t know how to change the existing column to auto-increment.
>
>
> $ create sequence hist_id_seq;
alter table hist alter column hist_id set default nextval( 'hist_id_seq');
Best regards,
depesz
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