Re: unique index on variable time
- From: Michael Fuhr <mike(at)fuhr(dot)org>
- To: "pgsql-general(at)list(dot)coretech(dot)ro" <pgsql-general(at)list(dot)coretech(dot)ro>
- Cc: pgsql-general(at)postgresql(dot)org
- Subject: Re: unique index on variable time
- Date: Sun, 16 Apr 2006 10:50:26 -0600
- Message-id: <20060416165025(dot)GA33828(at)winnie(dot)fuhr(dot)org>
On Sun, Apr 16, 2006 at 07:07:11PM +0300, pgsql-general(at)list(dot)coretech(dot)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
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