Ahh, thanks. So it is simply a syntactic transform, and not really a
"proper" internal comparison operator change.
Regards,
Ed
On Tue, 11 May 2004, Stephan Szabo wrote:
> Use the full version or if you're generating the query strings on the fly
> put only the check that matters (either the equality or the is null as
> appropriate for the values). Or if all you care about is true/false,
> possibly
> select exists(select 1 from tmp where ...)
> may be better.
>
> Transform_null_equals is meant convert a very specific x = NULL or NULL =
> x into x IS NULL. It doesn't (nor is it meant to) change how nulls
> compare.
>
