Yes there is.  You can find it in the TODO list under
Performance -> Indexes
(http://www.postgresql.org/docs/todo.html).  It isn't
slated for the 7.1 release however. 

Brent 

--- adb <[EMAIL PROTECTED]> wrote:
> I've noticed that select max(the_primary_key) from
some_table
> does a table scan.  Is there any plan to implement
max/min
> calculations
> using index lookups if the appropriate index exists?
>
> Thanks,
>
> Alex.
>

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