On Wed, 2006-03-29 at 03:14 -0800, sylsau wrote:
> I use PostgreSQL 8.1 and I would like create and index on a table's
> field with a sort condition on this field.
> For example, I have a table named books and I want create an index on
> the fields title and id_book with an order by id_book descendant.
>
> I know how to create the index without this condition :
>
> create index book_index on books(id_book, title);
>
The index is already sorted and can be scanned forwards or backwards.
Perhaps you want CLUSTER?
Best Regards, Simon Riggs