Tom Lane wrote:
> Renaud Thonnart <thonnart@amwdb.u-strasbg.fr> writes:
> > Which is the SQL norm of PostgreSQL?
> > I suppose it is SQL3 ?
>
> AFAIK, SQL3 is not a recognized standard. We are converging (slowly)
> on full support for SQL92, and we have some SQL99 features (and will
> have more over time, no doubt).
>
> I am not sure that we will ever be 100% compliant with either spec,
> however. There are legacy things that we don't particularly want to
> change --- for example, the choice of lower rather than upper case as
> the default case folding for identifiers.
>
> regards, tom lane
Thank you for your explaination Tom.
Sincerly,
Renaud THONNART