| From: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com> |
|---|---|
| To: | Peter <peterpub1(at)aboutsupport(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Domains |
| Date: | 2006-02-18 17:12:07 |
| Message-ID: | 20060218090855.F6652@megazone.bigpanda.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Sat, 18 Feb 2006, Peter wrote:
> Hello,
>
> I am migrating to postgresql from another database. I want to take
> advantage of using domains. Let's suppose I create domain
> 'email'(varchar 128). Then I change my mind and want to increase all
> columnst that have type 'emaill' to varchar(255). How do I change the
> domain 'email' to the new datatype. I can not figure how to do it with
> "alter domain" syntax.
It doesn't look like alter domain currenly has type changing support, so I
don't think you can do this (in general) right now. Some conversions
might be possible with direct alterations to system tables, but that's a
bit dangerous. I don't know if anyone's working on this right now either,
but it sounds reasonable (now that we have table column type changing).
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