Hitoshi Harada wrote:
> > The spec says: "The ROW_NUMBER function computes the sequential row
> number,
> > starting with 1 (one) for the first row, of the row within its window
> > partition according to the window ordering of the window."
> >
> > I'm just not sure if we should block this or not.
2008/11/10 David Rowley <[EMAIL PROTECTED]>:
> I've been trying to think of a use case for using ROW_NUMBER() with no ORDER
> BY in the window clause.
>
> Using the example table I always seem to be using, for those who missed it
> in other threads.
>
> create table employees (
> id INT primary ke
>
>
> I see this as a greate feature.
I would treat ranking functions without explicit order by clause as a
feature rather than a bug. However, I believe, in most cases optimizer will
avoid additional sort when possible, thus an "order by" in a windowing
clause would not cause any performance degr
On Sunday 09 November 2008 22:35:01 David Rowley wrote:
> I've been trying to think of a use case for using ROW_NUMBER() with no ORDER
> BY in the window clause.
>
> Using the example table I always seem to be using, for those who missed it
> in other threads.
>
> create table employees (
> id
I've been trying to think of a use case for using ROW_NUMBER() with no ORDER
BY in the window clause.
Using the example table I always seem to be using, for those who missed it
in other threads.
create table employees (
id INT primary key,
name varchar(30) not null,
department varchar(30)
