Re: Unique index problem

On Mon, Dec 21, 2015 at 1:00 PM, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
wrote:

> On Sun, Dec 20, 2015 at 11:39 PM, Sterpu Victor <victor(at)caido(dot)ro> wrote:
> > Thank you.
> >
> > I used the syntax with 2 indexes, it works for me.
> > But why does NULL != NULL?
>
> Because NULL literally means "an unknown, possibly unknowable value."
>
> You need to stop thinking of NULL as A value. It is not.
>

​Right. It would be sort of like asking: "is an object which I can't see
the same as (==) or different from (!=) some other object which I can't
see?" Answer: "How would I know???"​

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