Re: select count() out of memory

On 10/25/07, Steve Crawford <scrawford@pinpointresearch.com> wrote:
> Alvaro Herrera wrote:
> ...
> >
> > You can use CREATE TABLE LIKE, which copies the definition but does not
> > set the inheritance.
> >
>
> Well, sort of.
>
> Unless I'm using it incorrectly it only copies the basic column
> definitions and, as optionally specified, defaults and some of the
> constraints.
>
> Primary key constraints are lost as CREATE TABLE newtable (LIKE
> oldtable) does not create any indexes including those necessary for the
> primary key.
>
> I don't know how foreign-key constraints are handled as I haven't used
> this form of CREATE TABLE where foreign keys are involved.

Neither inheritance nor creating LIKE will inherit primary keys.

Foreign keys will not be inherited by either method either.