Re: unique index on variable time

On Sun, Apr 16, 2006 at 07:07:11PM +0300, pgsql-general@list.coretech.ro wrote:
> I am interested to know if I can define an unique index on a timestamp
> column to reject values within one hour.

Last month I posted an idea for enforcing unique constraints on
date ranges by using a composite type and a custom comparison
operator:

http://archives.postgresql.org/pgsql-sql/2006-03/msg00055.php

The warning about the code being only minimally tested still stands
but maybe it'll give you some ideas.

--
Michael Fuhr