> That outputs a relation with a column whose origin is two separate columns
> in two separate tables. Even without the join, the origin may be two
> columns in one table.
>
> > On Feb 18, 2017, at 7:49 PM, Sarnath K wrote:
> >
> > Just curious...How can a column have
Just curious...How can a column have multiple origins? Join key type
scenarios where they have the same value regardless of where they originate
from?
On Feb 19, 2017 09:18, "jordan.halter...@gmail.com" <
jordan.halter...@gmail.com> wrote:
> You can often get the original of a column via
> RelMe