| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | Russell Smith <mr-russ(at)pws(dot)com(dot)au> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Changing the number and type of columns in a view |
| Date: | 2006-11-09 12:09:04 |
| Message-ID: | 45531A60.7020604@archonet.com |
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| Lists: | pgsql-general |
Russell Smith wrote:
> Hi General,
>
> Is there a reason why it is not possible to redefine a view with a
> different number of columns or a different column type?
> It's been possible to change the datatypes of a table, and the column
> numbers for a long time. What are the restrictions on making this
> possible for views.
>
> I know you can drop an recreate the view, but if the view has dependent
> objects it becomes more difficult.
That's why - the dependent objects might have to change with it.
I suppose it should be possible to add columns to a view without causing
too many problems. Or change a column-definition provided it isn't
referenced anywhere.
--
Richard Huxton
Archonet Ltd
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