Обсуждение: naming a primary key possible?

Is it possible to name a primary key (composite) primary key rather than
have pg default to table_name_pkey??

I tried something like

primary key pkey_table_short_form_name (a,b,c)

but it didnt' work.

On Aug 27, 2007, at 8:50 PM, Ow Mun Heng wrote:

> Is it possible to name a primary key (composite) primary key rather
> than
> have pg default to table_name_pkey??
>
> I tried something like
>
> primary key pkey_table_short_form_name (a,b,c)
>
> but it didnt' work.
>

Give this a shot:

CONTRAINT pkey_table_short_form_name PRIMARY KEY (a,b,c)

That's not really clear from the top of the CREATE TABLE docs but
there's an example at the bottom that shows it.

Erik Jones

Software Developer | Emma®
erik@myemma.com
800.595.4401 or 615.292.5888
615.292.0777 (fax)

Emma helps organizations everywhere communicate & market in style.
Visit us online at http://www.myemma.com

On Aug 27, 2007, at 20:50 , Ow Mun Heng wrote:

> Is it possible to name a primary key (composite) primary key rather
> than
> have pg default to table_name_pkey??
>
> I tried something like
>
> primary key pkey_table_short_form_name (a,b,c)

create table tab (col text, constraint col_is_pkey primary key (col));

http://www.postgresql.org/docs/8.2/interactive/sql-createtable.html

Michael Glaesemann
grzm seespotcode net

On Mon, 2007-08-27 at 21:03 -0500, Erik Jones wrote:
> On Aug 27, 2007, at 8:50 PM, Ow Mun Heng wrote:
>
> > Is it possible to name a primary key (composite) primary key rather
> > than have pg default to table_name_pkey??
> >
> > I tried something like
> >
> > primary key pkey_table_short_form_name (a,b,c)
> >
> Give this a shot:
>
> CONTRAINT pkey_table_short_form_name PRIMARY KEY (a,b,c)
>
> That's not really clear from the top of the CREATE TABLE docs but
> there's an example at the bottom that shows it.

This definitely works..
Thanks..

Indexes:
    "trd_pkey" PRIMARY KEY, btree (trd_pkey)