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Date: Sun, 19 Apr 2009 16:56:19 -0700
From: David Fetter <david@fetter.org>
To: Robson Fidalgo <rdnf@cin.ufpe.br>
Cc: pgsql-docs@postgresql.org, pgsql-general@postgresql.org
Subject: Re: [GENERAL] Postgresql 8.3X supports Arrays of Composite Types?
Message-ID: <20090419235619.GB10700@fetter.org>
References: <41534c40904191403m2eeabc27tc4bc6ce206c87464@mail.gmail.com>
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On Sun, Apr 19, 2009 at 06:03:26PM -0300, Robson Fidalgo wrote:
> Hello,
> I am using postgresql 8.3X and I created a table (see example below)
> that has an attribute that is an Array of a Composite Type (ROW).
> However, I do not know how can I insert a record in this table.

You want a normalized table anyhow.  If you want something
denormalized, use a view.

> Example:
> 
> CREATE table phone (
>   cod varchar,
>   num varchar);
> 
> CREATE TABLE person (
>   name varchar,
>   telephone phone[]);

This is better as:

CREATE TABLE phone (
    cod VARCHAR,
    num VARCHAR,
    PRIMARY KEY(cod, num)
);

CREATE TABLE person (
    name varchar,
    PRIMARY KEY(name)
)

CREATE TABLE person_phone (
    name VARCHAR NOT NULL REFERENCES person(name),
    cod VARCHAR,
    num VARCHAR,
    FOREIGN KEY(cod, num) REFERENCES phone(cod, num),
    PRIMARY KEY(name, cod, num)
);

Cheers,
David.
-- 
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@gmail.com

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