RE: Views and default values

I think that a coalesce might work here, something like:

create rule v_foo_ins as on insert to v_foo do instead
        insert into foo (explication, silly) values (
                NEW.explication,
                COALESCE(NEW.silly, 'DEFAULT_VALUE'));

Obviously you replace the DEFAULT_VALUE with whatever you want your default to be.

Cheers...

MikeA

>> -----Original Message-----
>> From: DaVinci [mailto:bombadil@wanadoo.es]
>> Sent: 06 April 2001 12:27
>> To: pgsql-general@postgresql.org
>> Subject: Re: [GENERAL] Views and default values
>>
>>
>> On Fri, Apr 06, 2001 at 12:24:09PM +0100, Michael Ansley wrote:
>> > >>  Data Base:
>> > >>
>> > >>         create table foo (
>> > >>                 cod                     serial primary key,
>> > >>                 explication     text,
>> > >>                 silly           bool default 't');
>> > >>
>> > >>         create view v_foo as
>> > >>                 select * from foo;
>> > >>
>> > >>         create rule v_foo_ins as on insert to v_foo do instead
>> > >>                 insert into foo values (
>> > >>                         NEW.cod,
>> > >>                         NEW.explication,
>> > >>                         NEW.silly);
>> > You should probably have this:
>> >
>> > create rule v_foo_ins as on insert to v_foo do instead
>> >    insert into foo (explication, silly) values (
>> >            NEW.explication,
>> >            NEW.silly);
>> >
>> > The rule is trying to insert NEW.cod, which is null, into
>> the table.  This
>> > rule let's the cod field take care of itself.
>> 
>>  That is valid for 'cod' but not for 'silly'. I'd like that
>> if insert value
>>  is null, then I get default value, but if insert value is
>> not null, this is
>>  value that is saved.
>>
>>  Any idea?...
>>
>>  Thanks.
>>
>>                                                             
>>                      David
>>
>> ---------------------------(end of
>> broadcast)---------------------------
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>>

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