Alexander Burger writes:
> On Sun, Sep 29, 2013 at 01:31:06PM +0200, Alexander Burger wrote:
>> Yes, I understood that. Unfortunately, 'select' by itself doesn't filter
>> for specific classes (as, for example, the 'db' and 'collect' functions
>> do).
>>
>> It simply gathers objects it can detet
Alexander Burger writes:
Hi Alex,
>> > But in general, note that
>> >
>> > (select a1 +C)
>> >
>> > reads "SELECT a1 from C". This means, you specified no search criterion
>> > at all.
>>
>> yes, but my point is I specifiy a class +C and I'm surprised that its
>> superclasses are matched too
On Sun, Sep 29, 2013 at 01:31:06PM +0200, Alexander Burger wrote:
> Yes, I understood that. Unfortunately, 'select' by itself doesn't filter
> for specific classes (as, for example, the 'db' and 'collect' functions
> do).
>
> It simply gathers objects it can detetct from the '+C' class, by picking
Hi Thorsten,
> > But in general, note that
> >
> > (select a1 +C)
> >
> > reads "SELECT a1 from C". This means, you specified no search criterion
> > at all.
>
> yes, but my point is I specifiy a class +C and I'm surprised that its
> superclasses are matched too as well as classes that don't ev
Alexander Burger writes:
Hi Alex,
>> ,--
>> | (class +a)
>> | (rel a1)
>> |
>> | (class +b +a)
>> | (rel b1)
>> |
>> | (class +C +b)
>> | (rel C1)
>> |
>> | (class +D +a)
>> | (rel D1)
>> `--
>>
>> now
>>
>> ,---
>> | (select a1 +C)
>> `---
>>
>
Hi Thorsten,
> ,--
> | (class +a)
> | (rel a1)
> |
> | (class +b +a)
> | (rel b1)
> |
> | (class +C +b)
> | (rel C1)
> |
> | (class +D +a)
> | (rel D1)
> `--
>
> now
>
> ,---
> | (select a1 +C)
> `---
>
> and
>
> ,---
> | (select a1 +
