Vlado Moravec writes:
> from postgres docs: "foreign key must reference columns that either are a
> primary key or form a unique constraint". It does not allow creating foreign
> key constraint on non-unique column - an error is raised.
> After playing with a new database I discovered that such a
On Mon, Jun 8, 2009 at 11:48 AM, Vlado Moravec wrote:
> Hi,
> from postgres docs: "foreign key must reference columns that either are a
> primary key or form a unique constraint". It does not allow creating foreign
> key constraint on non-unique column - an error is raised.
> After playing with a n
Hi,
from postgres docs: "foreign key must reference columns that either are a
primary key or form a unique constraint". It does not allow creating foreign
key constraint on non-unique column - an error is raised.
After playing with a new database I discovered that such a unique constraint
can be dr
