Re: Scroll cursor oddity...

"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:

> Mike Aubury <mike(dot)aubury(at)aubit(dot)com> writes:
>> ie - under postgresql it appears we've scrolled *past* the last row and need
>> an additional fetch to get back to our last row..
>
> Why do you find that surprising? It seems to me to be symmetrical with
> the case at the beginning of the table --- the cursor is initially
> positioned before the first row. Why shouldn't there be a corresponding
> state where it's positioned after the last row?

What's implied by that but perhaps not clear is that it's easier to think of
cursors as being *between* rows rather than *on* rows. I'm not sure the
standard entirely adopts that model however.

--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
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