On Wed, Jul 12, 2000 at 11:36:44AM -0500, Ross J. Reedstrom wrote:
>
> You might be able to use a two key index, on mail_date, mailid. I think
> you have to be careful to put key you want sorted output on first,
> to ensure that the index order is presorted, and the planner know it.
Bah, I clearly need lunch: that last sentence, with better grammar:
[...] be careful to put the key you want output sorted on first, to ensure that the index order is presorted, and
thatthe planner knows it.
Ross
--
Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu>
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St., Houston, TX 77005
