From: PFC <lists@boutiquenumerique.com>
To: bernard@bgsoftfactory.com
To: pgsql-sql@postgresql.org
Subject: Re: Newbie wonder...
Date: Mon, 14 Mar 2005 10:02:08 +0100
Message-ID: <opsnmd1uimth1vuj@localhost> (raw)
In-Reply-To: <1mmif8pua8zxb.q7qw4hme6jk5.dlg@40tude.net>
References: <1mmif8pua8zxb.q7qw4hme6jk5.dlg@40tude.net>
If you want to add a SERIAL field to an existing table, create a sequence
and then create an integer field with default nextval(seq) and postgres
will fill it automatically. The order in which it will fill it is not
guaranteed though !
However, you might also like to de-dupe your data once it's in the
additional tables, thus you might need more complicated measures.
> (2) How should I go to create a sequence for an existing table? For all
> futures data entry, after this conversion, I want the unique ID for each
> row to come from a sequence, but if I know how to create a table using
> serial, I am not sure how to modify one for this.
>
> Thanks,
> Bernard
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org
>
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To: pgsql-sql@postgresql.org
Cc: lists@boutiquenumerique.com, bernard@bgsoftfactory.com
Subject: Re: Newbie wonder...
In-Reply-To: <opsnmd1uimth1vuj@localhost>
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