Re: views and rules - Mailing list pgsql-novice

From Chad Thompson
Subject Re: views and rules
Date
Msg-id 021401c22904$5949ec20$32021aac@chad
Whole thread Raw
In response to views and rules  ("Chad Thompson" <chad@weblinkservices.com>)
List pgsql-novice
Perfect! Thanks

Chad
----- Original Message -----
From: "Masaru Sugawara" <rk73@sea.plala.or.jp>
To: "Chad Thompson" <chad@weblinkservices.com>
Cc: <pgsql-novice@postgresql.org>
Sent: Thursday, July 11, 2002 10:57 AM
Subject: Re: [NOVICE] views and rules


> On Tue, 9 Jul 2002 12:01:56 -0600
> "Chad Thompson" <chad@weblinkservices.com> wrote:
>
> > --this is what he submits to me
> > insert into call_results (phonenum, callnum, calldate, start_time)
> > values ('5552552555', 4524, '6/24/2002', '17:00:32')
> >
> > To get around this i have tried to create the following.
> >
> > CREATE TABLE "call_results_fixed" (
> > "id" int8 DEFAULT nextval('"call_results_fixed_id_seq"'::text) NOT NULL,
> > "callnum" int4,
> > "calldate" timestamp,
> > "phonenum" varchar(15),
> > "start_time" timestamp
> > CONSTRAINT "call_results_fixed_pkey" PRIMARY KEY ("id")
> > ) WITH OIDS;
> >
> > CREATE VIEW "call_results" AS SELECT * from call_results_fixed
>
>
> It appears that the types of the columns defined as a view are different
> from those of the values inserted into it.  I think it is probably a
useful way
> to explicitly cast like the following.
>
>   CREATE VIEW call_results AS
>        SELECT phonenum, callnum, calldate, start_time::text
>           FROM call_results_fixed;
>
>
> >
> > CREATE RULE ins_call_results AS ON INSERT TO call_results
> > DO INSTEAD INSERT INTO call_results_fixed (calldate, callnum, phonenum,
start_time)
> > VALUES ("timestamp"(new.calldate), new.callnum, new.phonenum,
"timestamp"(((to_char(timestamptz(new.calldate), 'MM-DD-YYYY'::text) || '
'::text) || text(new.start_time))));
> >
> > This would effectivly concatinate the date and time and insert them into
the call_results_fixed table. (or so it would seem)
> >
> > I get an error when i set this up, however that says
> >
> > "Bad timestamp external representation '17:00:32'
> >
> > In other words, it seems that it is testing the column type without
taking into account the rule.
> >
>
>
>
> Regards,
> Masaru Sugawara
>
>
>


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