On Tue, 3 Oct 2000, David Diller wrote:
> I noticed that it's possible to have a table as a field type.
> For example:
> create table foo (val1 integer);
> create table bar (val2 foo);
>
> val2 in table bar ends up as an int4, designed for storing an oid from
> table foo.
> Is there a way to perform a query on bar that will return values from table
> foo (i.e., val1)?
I didn't know you could use a table name as a type either. I thought
something like this might join the tables:
select val1 from foo, bar where bar.val2::oid = foo.oid ;
But I get "ERROR: Cannot cast type 'foo' to 'oid'"
You can't seem to cast an oid into a foo either.
--
Tod McQuillin
