Re: rewriter in updateable views

On Fri, 18 Mar 2005 23:31:26 -0500, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Jaime Casanova <systemguards@gmail.com> writes:
> > ... but if we do INSERT INTO vfoo(col2) values ('some_string) the
> rewriter
> > cann resolv the value for col1. the reason is that views does not
> > inherit the defaults of the parent table. That is the reason you add
> > the ALTER TABLE  ALTER COLUMN ADD/DROP DEFAULT for views.
> 
> > Ok, this is a problem for us, so we want to improve the rewriter to
> > see the default in the base table an add it as appropiate.
> 
> Why do you not define the problem as "when we decide a view is
> updateable and create the needed rules for it, also create default
> values for it by copying up from the base tables"?
> 
>             regards, tom lane
>
Well, that was our first thought. but what if the default value is
changed in the base table? then we have a problem, can we found in
what views we have to alter the default value in order to keep
consistency.

regards,
Jaime Casanova