Re: indexes on primary and foreign keys - Mailing list pgsql-performance

From K C Lau
Subject Re: indexes on primary and foreign keys
Date
Msg-id 6.2.1.2.0.20060112083033.02bb74c8@localhost
Whole thread Raw
In response to Re: indexes on primary and foreign keys  (Michael Fuhr)
Responses Re: indexes on primary and foreign keys  (Michael Glaesemann)
List pgsql-performance
At 07:21 06/01/12, Michael Fuhr wrote:
>On Wed, Jan 11, 2006 at 02:38:42PM -0800, Burak Seydioglu wrote:
> > I do a load of sql joins using primary and foreign keys. What i would like
> > to know if PostgreSQL creates indexes on these columns automatically (in
> > addition to using them to maintain referential integrity) or do I have to
> > create an index manually on these columns as indicated below?
> >
> > CREATE TABLE cities (
> >   city_id integer primary key,
> >   city_name varchar(50)
> > );
> >
> > CREATE INDEX city_id_index ON cities(city_id);
>
>PostgreSQL automatically creates indexes on primary keys.  If you run
>the above CREATE TABLE statement in psql you should see a message to
>that effect:
>
>NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index
>"cities_pkey" for table "cities"

Is there a way to suppress this notice when I create tables in a script?

Best regards,
KC.



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