Re: [Chicken-users] New immediate values (was: DBI)

[Elf]

not to add fuel to the debate, but ...

theres already ##sys#null-pointer defined (as a procedure that returns a null
pointer).. a) its already defined, b) it has the same semantics as a NULL,
c) it should be equivalent in the sense of eq? , i think...

(define sql-null (##sys#null-pointer))
would ensure that theyre equivalent in every sense of the term, one would think.


-elf

On Sun, 2 Mar 2008, Graham Fawcett wrote:

> On Sun, Mar 2, 2008 at 9:56 PM, Elf <address@hidden> wrote:
> >  out of curiousity, how can sql be returning symbols, ever?  enums are integers,
> >  yes?
>
> Hi Elf,
>
> My reasoning was that I don't want to needlessly restrict what a
> database driver returns. In Postgresql's case, for example, the
> database can define custom datatypes. It may be possible that a custom
> type is best represented by a symbol. When your db has builtin
> datatypes for arrays, circles, polygons and MAC addresses, and has an
> open system for defining anything else, it broadens one's horizons
> somewhat. :-)
>
> In Postgres, Enums are string values in a restricted set. (I gave that
> as a *possible* case where symbols might make sense, since they are
> interned strings.)
>
> Best,
> Graham