| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Gnanam <gnanam(at)zoniac(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Custom Fields Database Architecture |
| Date: | 2009-06-15 15:02:16 |
| Message-ID: | 20090615150216.GC20647@fetter.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Mon, Jun 15, 2009 at 06:04:25AM -0700, Gnanam wrote:
>
> Hi,
>
> I'm designing a database schema in which I should allow user to create
> custom fields at the application level.
This is called EAV (Entity-Attribute-Value), and it's a
multi-decade-old mistake. Re-think your design.
http://archives.postgresql.org/pgsql-general/2008-02/msg00075.php
http://decipherinfosys.wordpress.com/2007/01/29/name-value-pair-design/
http://en.wikipedia.org/wiki/Inner-Platform_Effect
Cheers,
David.
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David Fetter <david(at)fetter(dot)org> http://fetter.org/
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