Andrew Gierth wrote:
> Alvaro> This means we have to support stuff like
>
> Alvaro> declare foo cursor for select * from lists;
> Alvaro> select * from (fetch first from foo) as bar;
>
> No, that's wrong.
[...]
> so it's like this:
>
> select * from foo order by bar offset 5 rows fetch first 10 rows only;
Oh, I see -- it's just a cumbersome way to have our LIMIT clause.
What's the "ONLY" for?
> (nothing that I can see assigns any semantics to FIRST vs NEXT, they seem
> to do the same thing)
I was actually thinking that you'd be able to open a cursor and then
invoke the query repeatedly. With FETCH FIRST it wouldn't work, because
every repetition would get the same rows, but with FETCH NEXT it'd give
you a paginated query.
It seems a lot less useful this way.
--
Alvaro Herrera Valdivia, Chile ICBM: S 39º 48' 55.3", W 73º 15' 24.7"
"I dream about dreams about dreams", sang the nightingale
under the pale moon (Sandman)
