On Mon, Mar 29, 2021, at 16:17, Vik Fearing wrote:
> If you write your schema like this, then it becomes standards compliant:
> ...
> CREATE TABLE order_details (
> "order" REF(orders),
> product REF(products),
> quantity integer,
> PRIMARY KEY ("order", product)
> );
>
>
> And the query would be:
>
> SELECT DISTINCT order_details."order"->customer->company_name
> FROM order_details
> WHERE order_details.product->product_name = 'Chocolade';
>
>
> Postgres already supports most of that, but not all of it.
Thanks for making me aware of this.
I can see this is "4.9 Reference types" in ISO/IEC 9075-2:2016(E).
This looks awesome.
/Joel
