| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Phil Frost <phil(at)macprofessionals(dot)com> |
| Cc: | PostgreSQL-documentation <pgsql-docs(at)postgresql(dot)org> |
| Subject: | Re: Re: [BUGS] BUG #3965: UNIQUE constraint fails on long column values |
| Date: | 2008-03-05 16:56:44 |
| Message-ID: | 200803051656.m25GuiO17779@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-bugs pgsql-docs |
Phil Frost wrote:
> On Mar 5, 2008, at 11:20 , Bruce Momjian wrote:
>
> >
> > Does anyone think it is a good idea to document that our indexes
> > cannot
> > index arbirarily-long strings? I see nothing in the documentation now
> > about it.
>
> +1
>
> I never even knew. I'd be especially interested to hear about
> details, like how long strings can be until they are not guaranteed
> unique.
Part of the problem is we don't know the length --- it is the compressed
length that is limited, I think to 8k.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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